PRODUCTS

DISTEARYL THIODIPROPIONATE

Distearyl thiodipropionate is also used stabilizer in oils, lubricants, sealants, and adhesives.
Distearyl thiodipropionate is used by consumers, in articles, by professional workers (widespread uses), in formulation or re-packing, at industrial sites and in manufacturing.
Distearyl thiodipropionate is used in the following products: coating products and polymers.

CAS Number: 693‑36‑7
EC Number: 211‑750‑5
MDL Number: MFCD00026684
IUPAC Name: Dioctadecyl 3,3'-thiodipropionate (i.e., 3,3'-thiodipropionic acid di‑n‑octadecyl ester)
Molecular Formula & Weight: C₄₂H₈₂O₄S
Molecular Weight: 683.2 g/mol

SYNONYMS:
DSTP Yoshitomi, Antiox S, Arbestab DSTDP, Cyanox STDP, Cyanox OTDP, Carstab DSTDP, Propanoic acid, 3,3′-thiobis-, 1,1′-dioctadecyl ester, Propionic acid, 3,3′-thiodi-, dioctadecyl ester, Dioctadecyl 3,3′-thiodipropionate, Dioctadecyl thiodipropionate, Distearyl 3,3′-thiodipropionate, Distearyl β,β′-thiodipropionate, Distearyl β-thiodipropionate, Distearyl-3,3-thiodipropionate, Stearyl 3,3′-thiodipropionate,
Thiodipropionic Acid Distearyl Ester , Dioctadecyl 3,3'-Thiodipropionate , 3,3'-Thiodipropionic Acid Di-n-octadecyl Ester
3,3'-Thiobispropanoic acid, dioctadecyl ester, Advastab 802, Advastab PS 802, Antage STDP-N, Antiok S, Antioxidant STDP, Arbestab DSTDP, Cyanox STDP, Cyanox-STDP, DSTDP, DSTP, Dioctadecyl 3,3'-thiobispropanoate, Dioctadecyl 3,3'-thiodipropionate, Dioctadecyl thiodipropionate, Distearyl 3,3'-thiodipropionate, Distearyl beta,beta'-thiodipropionate, Distearyl beta-thiodipropionate, Distearyl thiodipropionic acid, Distearyl thiopropionate, Evanstab 18, Hostanox SE 2, Hostanox SE 4, Hostanox VP-SE 2, Irganox PS 802, Lusmit SS, Naugard DSTDP, PS 802, Plastanox STDP, Plastanox STDP Antioxidant, Propanoic acid, 3,3'-thiobis-, dioctadecyl ester, Propionic acid, 3,3'-thiodi-, dioctadecyl ester, Seenox DS, Sumilizer TPS, Thio 1, Thiodipropionic acid, distearyl ester, Varox DSTDP, Yoshinox DSTDP, [ChemIDplus], dstdp, dstp, ps802, AO-DSDTP, Antioxidant DSTDP, Distearyl thiodiprop, dioctadecyl 3,3'-thiodipropanoate, antioks, lusmitss, seenoxds, 3,3'-Thiobispropanoic acid 1,1'-dioctadecyl ester, 3,3'-Thiobispropanoic acid dioctadecyl ester, 3,3'-Thiodipropionic acid dioctadecyl ester, Advastab 802, Advastab PS 802, Antiox S, Antioxidant 802, Arbestab DSTDP, Carstab DSTDP, Cyanox OTDP, Cyanox STDP, DSTDP, DSTP, DSTP Yoshitomi, Dioctadecyl 3,3'-thiodipropionate, Dioctadecyl thiodipropionate, Distearyl 3,3'-thiodipropionate, Distearyl thiodipropionate, Distearyl ß,ß'-thiodipropionate, Distearyl ß-thiodipropionate, Distearyl-3,3-thiodipropionate, Evanstab 18, Hostanox SE 2, Hostanox SE 4, Hostanox VP-SE 2, Irganox 802FD, Irganox PS 802, Irganox PS 802FD, Irganox PS 802FL, Lasumit SG, Lowinox DSTDP, Lusmit SS, NSC 65493, Naugard DSTDP, Negonox DSTP, PS 802, PS 802FL, Plastanox STDP, Plastanox STDP Antioxidant, Seenox DS, Songnox DSTDP, Stearyl 3,3'-thiodipropionate, Sumilizer TPS, Thio 1, Varox DSTDP, Yoshinox DSTDP, Yoshinox DSTP, Distearyl 3,3′-thiodipropionate, 3,3′-Thiodipropionic acid di-n-octadecyl ester, Dioctadecyl 3,3′-thiodipropionate, Thiodipropionic acid distearyl ester, Propanoic acid,3,3′-thiobis-,1,1′-dioctadecyl ester, Propionic acid,3,3′-thiodi-,dioctadecyl ester, Propanoic acid,3,3′-thiobis-,dioctadecyl ester, Distearyl thiodipropionate, Distearyl β,β′-thiodipropionate, Distearyl 3,3′-thiodipropionate, PS 802, Plastanox STDP Antioxidant, Advastab PS 802, Dioctadecyl thiodipropionate, Stearyl 3,3′-thiodipropionate, Plastanox STDP, Dioctadecyl 3,3′-thiodipropionate, Advastab 802, Distearyl β-thiodipropionate, Cyanox STDP, DSTDP, Hostanox VP-SE 2, Yoshinox DSTDP, Irganox PS 802, DSTP, Hostanox SE 2, Lusmit SS, Naugard DSTDP, Arbestab DSTDP, Sumilizer TPS, Seenox DS, Antiox S, Varox DSTDP, Thio 1, Evanstab 18, Hostanox SE 4, Irganox PS 802FL, NSC 65493, Distearyl-3,3-thiodipropionate, Negonox DSTP, Carstab DSTDP, Yoshinox DSTP, Lowinox DSTDP, PS 802FL, Irganox 802FD, Antioxidant 802, Cyanox OTDP, DSTP Yoshitomi, Irganox PS 802FD, Songnox DSTDP, Lasumit SG, Antioxidant DSTP, AO 180T, Arenox DS, Antioxidant DSTDP, Rianox DSTP, Mark DSTDP, Jyanox DSTDP, 115863-90-6, 1323-85-9, 60649-48-1, Distearyl thiodipropionate, Dioctadecyl 3,3'-thiodipropionate, 3,3'-Thiodipropionic acid di‑n‑octadecyl ester, DSTDP, DSTP, Irganox PS‑802, Antioxidant DSTDP, Naugard DSTDP, Songnox DSTDP, Advastab 802, Dioctadecyl thiodipropionate, Plastanox STDP, Antioxidant STDP, Distearyl 3,3'-thiodipropionate, Cyanox STDP, Advastab 802, Advastab PS 802, Sumilizer TPS, Arbestab DSTDP, Lusmit SS, Seenox DS, Yoshinox DSTDP, Naugard DSTDP, Evanstab 18, Hostanox SE 2, Hostanox SE 4, Varox DSTDP, Antage STDP-N, Thio 1, Cyanox-stdp, Hostanox VP-SE 2, Plastanox STDP Antioxidant, Antiok S, Distearyl thiodipropionic acid, Propanoic acid, 3,3'-thiobis-, dioctadecyl ester, Distearyl thiopropionate, PS 802, Plastic additive 10, Thiodipropionic acid, distearyl ester, NSC 65493, Distearyl beta-thiodipropionate, HSDB 5746, Propionic acid, 3,3'-thiodi-, dioctadecyl ester, Dioctadecyl 3,3'-thiobispropanoate, Carstab DSTDP, Lankromark DSTDP, Lowinox DSTDP, EINECS 211-750-5, EINECS 250-843-5, Distearyl beta,beta'-thiodipropionate, UNII-B40A12D0GL, Argus DSTDP, 3,3'-Thiobispropanoic acid, dioctadecyl ester, BRN 2229929, B40A12D0GL, DSTP YOSHITOMI, Distearyl .beta.-thiodipropionate, NSC-65493, 31852-10-5, Distearyl .beta.,.beta.'-thiodipropionate, Propanoic acid, 3,3'-thiobis-, 1,1'-dioctadecyl ester, Propionic acid, thiodi-, dioctadecyl ester, Alkanox 240-3T (Salt/Mix), DTXSID3027299, 3,3'-Dioctadecyl thiodipropionate, EC 211-750-5, PLASTIC ADDITIVE 10 [USP-RS], PLASTIC ADDITIVE 10 (USP-RS), CyanoxSTDP, Antage STDPN, Hostanox VPSE 2, Distearyl betathiodipropionate, Distearyl 3,3'thiodipropionate, DTXCID407299, Dioctadecyl 3,3'thiodipropionate, Dioctadecyl 3,3'thiobispropanoate, Distearyl beta,beta'thiodipropionate, DISTEARYL THIODIPROPIONATE [INCI], Propanoic acid, thiobis-dioctadecyl ester, 3,3'Thiobispropanoic acid, dioctadecyl ester, Propanoic acid, 3,3'thiobis, dioctadecyl ester, Propionic acid, 3,3'thiodi, dioctadecyl ester, 250-843-5, pwwssiyvtqujqq-uhfffaoysa-n, 693-36-7, Dioctadecyl 3,3-Thiodipropionate, DSTP, octadecyl 3-(3-octadecoxy-3-oxopropyl)sulfanylpropanoate, Dioctadecyl 3,3'-thiodipropanoate(Flakes or Chunks), Propanoic acid, thiobis- dioctadecyl ester, dioctadecyl 3,3'-thiodipropanoate, 3,3'-Thiodipropionic acid di-n-octadecyl ester, MFCD00026684, HOSTANOX SE2, SCHEMBL43609, distearyl-3,3'-thiodipropionate, Thiodipropioic Acid Distearyl Ester, NSC65493, Dioctadecyl 3,3'-Thiodipropionate, AKOS024319082, AS-17566, 3,3'-Thiodipropionic Acid Dioctadecyl Ester, CS-0319564, NS00008146, T0206, Propanoic acid,3'-thiobis-, dioctadecyl ester, Propionic acid,3'-thiodi-, dioctadecyl ester, H11239, Q13081806, Plastic additive 17, European Pharmacopoeia (EP) Reference Standard, Plastic additive 10, United States Pharmacopeia (USP) Reference Standard, 211-750-5, advastab 802, antioxidant STDP, cyanox STDP, dioctadecyl 3,3-thiodipropionate, dioctadecyl 3,3'-sulfanediyldipropanoate, dioctadecyl 3,3'-thiobispropanoate, dioctadecyl 3,3'-thiodipropanoate, dioctadecyl 3,3'-thiodipropionate, dioctadecyl 4-thiaheptanedioate, distearyl 3,3'-thiodipropionate, evanstab 18, hostanox SE 2, irganox PS 802, octadecyl 3-(3-octadecoxy-3-oxopropyl)sulfanylpropanoate, plastanox STDP, propanoic acid, 3,3'-thiobis-, dioctadecyl ester, propanoic acid, thiobis- dioctadecyl ester, propionic acid, 3,3'-thiodi-, dioctadecyl ester, propionic acid, thiodi-, dioctadecyl ester, seenox DS, 3,3'-thiobispropanoic acid, dioctadecyl ester, thiodipropionic acid, distearyl ester, varox DSTDP, Antioxidant STDP, Distearyl thiodipropionate, Dioctadecyl 3,3'-thiodipropionate, Dioctadecyl thiodipropionate, Distearyl 3,3'-thiodipropionate, Distearyl beta,beta'-thiodipropionate, Distearyl beta-thiodipropionate, Propionic acid 3,3'-thiodi, dioctadecyl ester, Diodipropionic acid distearyl ester, Antioxidant-STDP, Antioxidant DSTDP, Distearyl thiodiprop, Distearyl thiodipropionate, Distearyl 3,3-thiodipropionate, dioctadecyl 3,3'-thiodipropionate, Di-n-octadecyl 3,3'-Thiodipropionate, 3,3'-Thiobis(propionic acid octadecyl), 3,3-Thiodipropionic Acid Di-N-Octadecy, 3,3'-Thiodipropionic acid dioctadecyl ester, 3,3'-Thiobis(propionic acid octadecyl) ester, 3,3-Thiodipropionic acid di-n-octadecyl ester, octadecyl 3-(3-octadecoxy-3-oxopropyl)sulfanylpropanoate, octadecyl 3-(3-octadecoxy-3-oxo-propyl)sulfanylpropanoate, 3-[(3-keto-3-stearyloxy-propyl)thio]propionic acid stearyl ester,

Distearyl thiodipropionate is a kind of thioester auxiliary antioxidant with excellent performance.
Its antioxidant effect is higher than Distearyl thiodipropionate, low volatility, low thermal processing loss, no pollution and no coloring.
Distearyl thiodipropionate has a synergistic effect when used together with the main antioxidants Sinanox 1010 and Sinanox 1076, Sinanox CA, etc.

Distearyl thiodipropionate is widely used in petroleum products such as polyethylene, polypropylene, ABS resin, and the general dosage is 0.1% to 1.0%.
Distearyl thiodipropionate is white crystalline powder or granules.

Distearyl thiodipropionate is insoluble in water, soluble in benzene and toluene.
Distearyl thiodipropionate is registered under the REACH Regulation and is manufactured in and / or imported to the European Economic Area, at ≥ 1 000 to < 10 000 tonnes per annum.

Distearyl thiodipropionate is derived from the reaction of stearyl alcohol and thiodipropionic acid.
Distearyl thiodipropionate is usually in the form of white particles or powder, which can impart excellent long-term thermal stability to the material, and is usually used in combination with phenolic antioxidants.

Distearyl thiodipropionate is an antioxidant additive added to prevent degradation or oxidative decomposition of the organic polymers.
Distearyl thiodipropionate has decreased the aging properties of poly(1-butene) in a hot air aging box.
Distearyl thiodipropionate is a thioether-type antioxidant that functions by scavenging peroxides.

Distearyl thiodipropionate, with the CAS number 693-36-7, is an organosulfur compound primarily used as an antioxidant and stabilizer in various applications, particularly in plastics and rubber.
Distearyl thiodipropionate features a thiodipropionate backbone, which consists of two stearyl groups attached to a thiodipropionic acid moiety.

Distearyl thiodipropionate's structure contributes to its effectiveness in preventing oxidative degradation, thereby enhancing the longevity and performance of materials.
Distearyl thiodipropionate is characterized by its high melting point and low solubility in water, making it suitable for use in non-polar solvents and formulations.

Additionally, Distearyl thiodipropionate exhibits good thermal stability, which is essential for applications involving heat exposure.
Distearyl thiodipropionate is generally regarded as safe for use in various industrial applications, although handling precautions should be observed to minimize exposure.

Its ability to scavenge free radicals makes Distearyl thiodipropionate a valuable additive in the formulation of products requiring enhanced stability against oxidative stress.
Distearyl thiodipropionate is a novel and potent bioactive compound.

Distearyl thiodipropionate is a secondary thioester antioxidant for organic polymers.
Distearyl thiodipropionate is provided as delivered and specified by the issuing Pharmacopoeia.
Distearyl thiodipropionate (DSTDP), also known as Propanoic acid, 3,3'-thiobis-, dioctadecyl ester, is an organo-sulfur compound indicated for use as an antioxidant in plastics and rubbers.

Distearyl thiodipropionate is usually white particles or powder, which can give materials excellent long-term thermal stability.
Distearyl thiodipropionate is usually used in combination with a phenolic antioxidant.

USES and APPLICATIONS of DISTEARYL THIODIPROPIONATE:
Distearyl thiodipropionate is used as a secondary stabilizer and antioxidant in combination with phenolic antioxidant for polymers (ABS, polypropylene, polyethylene and polyesters).
Distearyl thiodipropionate is approved to use in food packaging.

Distearyl thiodipropionate is used in the following products: coating products and polymers.
Other release to the environment of Distearyl thiodipropionate is likely to occur from: indoor use and outdoor use resulting in inclusion into or onto a materials (e.g. binding agent in paints and coatings or adhesives).

Release to the environment of Distearyl thiodipropionate can occur from industrial use: industrial abrasion processing with low release rate (e.g. cutting of textile, cutting, machining or grinding of metal).
Other release to the environment of Distearyl thiodipropionate is likely to occur from: outdoor use in long-life materials with low release rate (e.g. metal, wooden and plastic construction and building materials) and indoor use in long-life materials with low release rate (e.g. flooring, furniture, toys, construction materials, curtains, foot-wear, leather products, paper and cardboard products, electronic equipment).

Distearyl thiodipropionate can be found in products with material based on: plastic (e.g. food packaging and storage, toys, mobile phones).
Distearyl thiodipropionate is used in the following products: adhesives and sealants, coating products, laboratory chemicals and polymers.
Distearyl thiodipropionate is used in the following areas: scientific research and development.

Distearyl thiodipropionate is used for the manufacture of: plastic products.
Other release to the environment of Distearyl thiodipropionate is likely to occur from: indoor use, outdoor use resulting in inclusion into or onto a materials (e.g. binding agent in paints and coatings or adhesives) and indoor use in close systems with minimal release (e.g. cooling liquids in refrigerators, oil-based electric heaters).

Distearyl thiodipropionate is used in the following products: polymers.
Release to the environment of Distearyl thiodipropionate can occur from industrial use: formulation in materials and formulation of mixtures.
Distearyl thiodipropionate is used in the following products: polymers.

Distearyl thiodipropionate is used for the manufacture of: plastic products.
Release to the environment of Distearyl thiodipropionate can occur from industrial use: in the production of articles and in processing aids at industrial sites.

Release to the environment of Distearyl thiodipropionate can occur from industrial use: manufacturing of the substance.
Polymers & Plastics: Distearyl thiodipropionate is used secondary antioxidant in PE, PP, ABS, HIPS, nylon, rubbers, adhesives—enhances thermal, oxidative, and light stability.

Food Contact Materials: Distearyl thiodipropionate is approved as indirect food additive under FDA 21 CFR § 175.105, 175.300, 181.24.
Cosmetics & Personal Care: Distearyl thiodipropionate is used as antioxidant in creams, lotions, makeup; approved by CIR and FDA for use as food packaging antioxidant.

Lubricants & Fats/Oils: Distearyl thiodipropionate is used Preservative/stabilizer in edible fats, oils, greases, and high-pressure lubricants.
Distearyl thiodipropionate is used as antioxidant for polypropylene, polyethylene, thermoplastics, rubbers, fats, and vegetable oils; also used as a plasticizer and as a preservative in animal feed.

Distearyl thiodipropionate can be widely used in polyethylene, polypropylene and ABS, PBT and other synthetic materials, but also in rubber processing and lubricating grease.
Distearyl thiodipropionate is used in plastics.

Distearyl thiodipropionate is used building/construction materials not covered elsewhere.
Distearyl Thiodipropionate is used as secondary antioxidant together with primary, usually phenolic antioxidants in Polypropylen, ABS or styrene-butadiene emulsions and certain adhesives.

Distearyl thiodipropionate's low volatility and high melting point allow easy handling with no loss during high-temperature processing.
Distearyl thiodipropionate is a thioether-type antioxidant that functions by scavenging peroxides formed during the thermal oxidative degradation of plastics and other organic materials.

Combinations of Distearyl thiodipropionatet with hindered phenolic antioxidants (e.g. BNX 1010) provide outstanding thermal stability in polyolefins, styrenic polymers, and engineering plastics.
Distearyl thiodipropionate is non-discoloring, has good compatibility with polyolefins, styrenic polymers, and adhesives, and has low odor relative to other sulfur-based antioxidants.

Distearyl thiodipropionate (DSTDP) is an important ingredient commonly used in cosmetics for its versatile applications.
Distearyl thiodipropionate is derived from the reaction between thiodipropionic acid and stearic acid, resulting in a compound that offers numerous benefits to cosmetic formulations.

Distearyl thiodipropionate also acts as a skin conditioning agent, softening and smoothing the skin's surface, making it ideal for moisturizers and foundations.
Additionally, Distearyl thiodipropionate functions as a viscosity controlling agent, allowing manufacturers to achieve the desired consistency and spreadability of their products.

Distearyl thiodipropionate showcases a stabilizing effect on color cosmetics, preventing color fading caused by external factors.
Distearyl thiodipropionate is generally considered safe for use in cosmetics, approved by regulatory bodies such as the FDA and CIR.
In summary, distearyl thiodipropionate is a versatile ingredient widely utilized in cosmetics for its antioxidant properties, skin conditioning abilities, viscosity control, stabilizing effect on color cosmetics, and safety profile.

Its wide range of applications makes Distearyl thiodipropionate a valuable component in various skincare and makeup products, resulting in enhanced product quality and performance.
Distearyl thiodipropionate acts as an antioxidant.

Distearyl thiodipropionate is used in cosmetic formulations.
Distearyl thiodipropionate is an antioxidant additive used to prevent degradation or oxidative decomposition of organic polymers.
Distearyl thiodipropionate reduces the aging properties of poly(1-Butene) in a hot air aging chamber.

Distearyl thiodipropionate is used as an antioxidant for rubber, soap, grease, lubricating oil, grease, polyolefin, etc.
Distearyl thiodipropionate is used as an auxiliary antioxidant and phenolic antioxidant, and its anti-oxidative aging productivity is superior to that of dilauric acid with thiodipropionic acid.

Distearyl thiodipropionate is not colored, no pollution, it is suitable for white and bright color products.
Distearyl thiodipropionate is used as an auxiliary antioxidant for polypropylene, polyethylene, synthetic rubber and grease.
Distearyl thiodipropionate can be widely used in polyethylene, polypropylene and ABS, PBT and other synthetic materials,

Distearyl thiodipropionate can also be used in rubber processing and lubricating grease.
Distearyl thiodipropionate is suitable for polyolefins, styrenic homo- and copolymers.

-Applications of Distearyl thiodipropionate in Cosmetics and Pharmaceuticals
Cosmetics: In cosmetic products, distearyl thiodipropionate serves as an antioxidant, helping to stabilize formulations against oxidative degradation.

This is particularly important in products that contain fats and oils, which are prone to rancidity.
Pharmaceuticals: In pharmaceutical applications, distearyl thiodipropionate can be used as an excipient, contributing to the stability and efficacy of drug formulations.

PROPERTIES AND USES OF DISTEARYL THIODIPROPIONATE:
Distearyl thiodipropionate is characterized by its antioxidant properties, making it useful in formulations where protection against oxidation is required.
Distearyl thiodipropionate's primary function is to prevent the deterioration of products by reacting with free radicals, thereby extending the shelf life of cosmetics and pharmaceuticals.
Distearyl thiodipropionate is typically used in small concentrations due to its potent antioxidant activity.

FUNCTIONAL CLASS OF DISTEARYL THIODIPROPIONATE:
*ANTIOXIDANT

PHYSICAL AND CHEMICAL PROPERTIES OF DISTEARYL THIODIPROPIONATE:
White crystalline powder.
Melting Point 63-69 °C.
Soluble in benzene, chloroform, carbon disulfide and carbon tetrachloride,
Difficult to dissolve in dimethylformamide and toluene.
Insoluble in acetone, ethanol and water.

SCIENTIFIC FACTS OF DISTEARYL THIODIPROPIONATE:
Dilauryl Thiodipropionate, Dicetyl Thiodipropionate, Dimyristyl Thiodipropionate, Distearyl Thiodipropionate and Ditridecyl Thiodipropionate are antioxidants.
These ingredients impede oxidation reactions and help to preserve the color and texture of finished cosmetics and personal care products.

PROPERTIES OF DISTEARYL THIODIPROPIONATE:
Distearyl thiodipropionate is a white to yellowish solid with a molecular formula of C31H54O2S and molecular weight of 498.86.
Distearyl thiodipropionate is insoluble in water but soluble in organic solvents.
Distearyl thiodipropionate has a slight characteristic odor and remains stable under normal temperatures and pressures.

Distearyl thiodipropionate functions as an antioxidant and UV stabilizer, effectively safeguarding the skin from free radicals and UV damage.
Distearyl thiodipropionate also acts as an emulsifier, aiding in the dispersion of other ingredients in personal care products.

Moreover, Distearyl thiodipropionate possesses water-resistant properties that help preserve moisture on the skin.
With its extensive use as an antioxidant, Distearyl thiodipropionate finds application in various industries including plastics, rubbers, and adhesives.

Distearyl thiodipropionate demonstrates exceptional thermal stability and compatibility with diverse polymers and organic materials.
Furthermore, Distearyl thiodipropionate is non-toxic and non-corrosive, ensuring safety and reliability in industrial settings.

In summary, distearyl thiodipropionate is a versatile antioxidant offering superior protection against oxidation and compatibility with different materials.

ADDITION AMOUNT OF DISTEARYL THIODIPROPIONATE:
The addition amount of Distearyl thiodipropionate is 0.05%-1%,
The specific addition amount of Distearyl thiodipropionate is determined according to the application test.

PRODUCTION METHOD OF DISTEARYL THIODIPROPIONATE:
Distearyl thiodipropionate is obtained by the reaction of a decanoate with thiodipropionic acid.

CHEMICAL CLASS & MECHANISM OF DISTEARYL THIODIPROPIONATE:
Distearyl thiodipropionate is a thioester antioxidant—a sulfur-containing ester derived from thiodipropionic acid and stearyl alcohol.
Distearyl thiodipropionate scavenges peroxides, serving mainly as a secondary antioxidant in oils, polymers, and fats.

✔️ FUNCTIONAL BENEFITS
*Effective Peroxide Scavenger:
Distearyl thiodipropionate slows oxidative deterioration in lipophilic systems.

*High Thermal Stability:
Low volatility and high flash point make Distearyl thiodipropionate suitable for high-temperature processes.

*Synergistic Use:
Distearyl thiodipropionate is often paired with phenolic antioxidants for enhanced polymer stabilization.

*Low Sensory Impact:
Minimal impact on odor, taste, or appearance.

WHAT IS DISTEARYL THIODIPROPIONATE:?
Thiodipropionic Acid is a dicarboxylic acid that contains a sulfur group.
It is used as an antioxidant in cosmetic and food products.

Dilauryl Thiodipropionate, Dicetyl Thiodipropionate, Dimyristyl Thiodipropionate, Distearyl Thiodipropionate and Ditridecyl Thiodipropionate are diester derivatives of Thiodipropionic Acid with similar functions.

This means that there is one carbon chain (with a chain length of 12 to 18 carbons) attached to each oxygen of the carboxyl groups.
Among these ingredients, Thiodipropionic Acid and Dilauryl Thiodipropionate are most common in cosmetics and personal care products including eye and face makeup products, and skin care preparations.

WHY IS DISTEARYL THIODIPROPIONATE USED?
Thiodipropionic acid and its derivatives prevent or slow the deterioration of cosmetic and personal care products by inhibiting reactions that occur through contact with oxygen in the air.

PHYSICAL and CHEMICAL PROPERTIES of DISTEARYL THIODIPROPIONATE:
Appearance: White to off-white crystalline powder or flakes
Odor: Slight characteristic odor—ester or sulfur-like; low odor overall
Melting Point: ~64–69 °C (varies by source)
Boiling/Decomposition Temperature: Decomposes ~360 °C; boiling ~570–660 °C (various estimates)
Flash Point: ~237–257 °C
Density: ~0.90–1.03 g/cm³
Solubility: Essentially insoluble in water (~10⁻⁷ mg/L), slightly soluble in organic solvents (e.g., chloroform, isopropanol)
Log P: Very high lipophilicity (estimated ~17.7)

CAS Number: 693‑36‑7
EC / EINECS Number: 211‑750‑5
IUPAC Name: Dioctadecyl 3,3'-thiodipropionate (i.e., 3,3'-thiodipropionic acid di‑n‑octadecyl ester)
Molecular Formula & Weight: C₄₂H₈₂O₄S; ~683.16 g/mol
Molecular Weight: 683.2 g/mol
XLogP3-AA: 18.2
Hydrogen Bond Donor Count: 0
Hydrogen Bond Acceptor Count: 5
Rotatable Bond Count: 42
Exact Mass: 682.59338227 Da
Monoisotopic Mass: 682.59338227 Da
Topological Polar Surface Area: 77.9 Å²

Heavy Atom Count: 47
Formal Charge: 0
Complexity: 574
Isotope Atom Count: 0
Defined Atom Stereocenter Count: 0
Undefined Atom Stereocenter Count: 0
Defined Bond Stereocenter Count: 0
Undefined Bond Stereocenter Count: 0
Covalently-Bonded Unit Count: 1
Compound Is Canonicalized: Yes

Appearance: White powder
Melting point ℃: 63.5~68.5
Volatile %: ≤0.05%
Ash %: ≤0.01%
Beilstein Number: 2229929
MDL: MFCD00026684
XlogP3-AA: 18.20 (est)
Molecular Weight: 683.17734000
Formula: C42 H82 O4 S
Appearance: white crystals (est)
Assay: 95.00 to 100.00

Food Chemicals Codex Listed: No
Boiling Point: 704.84 °C. @ 760.00 mm Hg (est)
Flash Point: 615.00 °F. TCC (323.70 °C.) (est)
logP (o/w): 18.030 (est)
Soluble in: water, 3.617e-014 mg/L @ 25 °C (est
CBNumber: CB1189063
Molecular Formula: C42H82O4S
Molecular Weight: 683.16
MDL Number: MFCD00026684
MOL File: 693-36-7.mol

Melting point: 65-67 °C
Boiling point: 664.53 °C (rough estimate)
Density: 0.8994 (rough estimate)
Refractive index: 1.5220 (estimate)
Flash point: 237 °C
Storage temp.: Refrigerator, under inert atmosphere
Solubility: Chloroform (Slightly)
Color: White to Off-White
λmax: 410 nm (H2O) (lit.)

InChI: InChI=1S/C42H82O4S/c1-3-5-7-9-11-13-15-17-19-21-23-25-27-29-31-33-37-45-41(43)35-39-47-40-36-42(44)46-38-34-32-30-28-26-24-22-20-18-16-14-12-10-8-6-4-2/h3-40H2,1-2H3
InChIKey: PWWSSIYVTQUJQQ-UHFFFAOYSA-N
SMILES: S(CCC(OCCCCCCCCCCCCCCCCCC)=O)CCC(OCCCCCCCCCCCCCCCCCC)=O
LogP: 17.7 at 25 °C
Indirect Additives used in Food Contact Substances: DISTEARYL THIODIPROPIONATE
FDA 21 CFR: 175.105; 175.300; 181.24
CAS DataBase Reference: 693-36-7 (CAS DataBase Reference)
EWG's Food Scores: 1
FDA UNII: B40A12D0GL

EPA Substance Registry System: Propanoic acid, 3,3'-thiobis-, 1,1'-dioctadecyl ester (693-36-7)
UNSPSC Code: 41116107
NACRES: NA.24
Molecular Weight: 683.16
Exact Mass: 683.16
EC Number: 211-750-5
UNII: B40A12D0GL
NSC Number: 65493
DSSTox ID: DTXSID3027299

Color/Form: White flakes | Crystals
HS code: 29309090
PSA: 77.9
XLogP3: 17.7 (est)
Appearance: Dry Powder; Dry Powder, Other Solid;
Dry Powder, Pellets Large Crystals; Other Solid; Pellets Large Crystals
Density: 1.027 g/cu cm at 25 °C
Melting Point: 60 °C
Boiling Point: 704.8 ± 45.0 °C at 760 mmHg
Flash Point: 237 °C
Refractive Index: 1.473
Water Solubility: Very soluble in benzene and olefin polymers

Storage Conditions: Keep tightly closed. Store in a cool dry place.
Vapor Pressure: 4.95 × 10⁻⁸ mm Hg at 20 °C
Henry's Law Constant: Henry's Law constant = 1.2 × 10⁻⁴ atm-cu m/mole at 25 °C (est)
Experimental Properties:
Resistant to heat and hydrolysis
Hydroxyl radical reaction rate constant = 6.9X10⁻¹¹ cu cm/molec-sec at 25 °C (est)
Molecular Weight: 683.2
XLogP3: 18.2
Hydrogen Bond Acceptor Count: 5
Rotatable Bond Count: 42
Exact Mass: 682.59338227

Monoisotopic Mass: 682.59338227
Topological Polar Surface Area: 77.9
Heavy Atom Count: 47
Complexity: 574
Covalently-Bonded Unit Count: 1
Compound Is Canonicalized: Yes
Physical state: flakes
Color: white, off-white
Odor: odorless

Melting point/freezing point: 65 - 67 °C
Initial boiling point and boiling range: No data available
Flammability (solid, gas): The product is not flammable.
Upper/lower flammability or explosive limits: No data available
Flash point: Not applicable
Autoignition temperature: No data available
Decomposition temperature: 220 °C
pH: 6 at 1 g/l
Viscosity, kinematic: No data available
Viscosity, dynamic: No data available

Water solubility: 0.001 g/l at 20 °C
Partition coefficient: n-octanol/water - No data available
Vapor pressure: No data available
Density: 0.998 g/cm³ at 20 °C
Relative density: No data available
Relative vapor density: No data available
Particle characteristics: No data available
Explosive properties: Not classified as explosive.
Oxidizing properties: none

Other safety information: No data available
EC Number: 211-750-5
Molecular Weight (g/mol): 683.16
Flash Point: 237℃
MDL number: MFCD00026684
NACRES: NA.24
Refractive Index: 1.5220 (estimate)
InChI Key: PWWSSIYVTQUJQQ-UHFFFAOYSA-N
SMILES: CCCCCCCCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCCCCCCCC
InChI: 1S/C42H82O4S/c1-3-5-7-9-11-13-15-17-19-21-23-25-27-29-31-33-37-45-41(43)35-39-47-40-36-42(44)46-38-34-32-30-28-26-24-22-20-18-16-14-12-10-8-6-4-2/h3-40H2,1-2H3
Safety Statements: 26-36/37/39

RTECS: UF8010000
HS Code: 29309090
Color: White to off-white
Category: Antioxidant Cosmetic Chemicals
Molecular Formula: C42H82O4S
Grade: Pharmaceutical primary standard
CAS Number: 693-36-7
Synonyms: Distearyl 3,3′-thiodipropionate, 3,3′-Thiodipropionic acid di-n-octadecyl ester, Dioctadecyl 3,3′-thiodipropionate, Thiodipropionic acid distearyl ester

Solubility: Chloroform (Slightly)
Storage: Refrigerator, under inert atmosphere
Boiling Point: 664.53°C (rough estimate)
Melting Point: 65-67°C
Density: 0.8994 g/cm³ (rough estimate)
Appearance: White crystal
Maximum wavelength (λmax): 410 nm (H2O) (lit.)
Storage Condition: Refrigerator, under inert atmosphere
Refractive Index: 1.5220 (estimate)
MDL: MFCD00026684

FIRST AID MEASURES of DISTEARYL THIODIPROPIONATE:
-Description of first-aid measures
*General advice:
Show this material safety data sheet to the doctor in attendance.
*If inhaled:
After inhalation:
Fresh air.
*In case of skin contact:
Take off immediately all contaminated clothing.
Rinse skin with
water/ shower.
*In case of eye contact:
After eye contact:
Rinse out with plenty of water.
Call in ophthalmologist.
Remove contact lenses.
*If swallowed:
After swallowing:
Immediately make victim drink water (two glasses at most).
Consult a physician.
-Indication of any immediate medical attention and special treatment needed.
No data available

ACCIDENTAL RELEASE MEASURES of DISTEARYL THIODIPROPIONATE:
-Environmental precautions:
Do not let product enter drains.
-Methods and materials for containment and cleaning up:
Cover drains.
Collect, bind, and pump off spills.
Observe possible material restrictions.
Take up dry.
Dispose of properly.
Clean up affected area.

FIRE FIGHTING MEASURES of DISTEARYL THIODIPROPIONATE:
-Extinguishing media:
*Suitable extinguishing media:
Carbon dioxide (CO2)
Foam
Dry powder
*Unsuitable extinguishing media:
For this substance/mixture no limitations of extinguishing agents are given.
-Further information:
Prevent fire extinguishing water from contaminating surface water or the ground water system.

EXPOSURE CONTROLS/PERSONAL PROTECTION of DISTEARYL THIODIPROPIONATE:
-Control parameters:
--Ingredients with workplace control parameters:
-Exposure controls:
--Personal protective equipment:
*Eye/face protection:
Use equipment for eye protection.
Safety glasses
*Body Protection:
protective clothing
*Respiratory protection:
Recommended Filter type: Filter A
-Control of environmental exposure:
Do not let product enter drains.

HANDLING and STORAGE of DISTEARYL THIODIPROPIONATE:
-Conditions for safe storage, including any incompatibilities:
*Storage conditions:
Tightly closed.
Dry.

STABILITY and REACTIVITY of DISTEARYL THIODIPROPIONATE:
-Chemical stability:
The product is chemically stable under standard ambient conditions (room temperature).
-Possibility of hazardous reactions:
No data available