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Di-Trimethylolpropane is a versatile, highly reactive polyol whose multifunctional hydroxyl structure makes it an essential building block in modern polymer chemistry.
Di-Trimethylolpropane plays a key role in the manufacture of alkyd resins, polyester resins, polyurethanes, and coatings, where it imparts hardness, durability, flexibility, and resistance to chemicals and abrasion.
With Di-Trimethylolpropane's ability to enhance thermal stability, mechanical strength, and weatherability, Di-Trimethylolpropane remains indispensable in high-performance polymers, adhesives, lubricants, and specialty applications.
CAS Number: 23235-61-2
EC Number: 245-475-0
Molecular Formula: C15H32O6
Molecular Weight: ~308.41 g/mol
Synonyms: DI(TRIMETHYLOLPROPANE), DTMP, 2,2'-OXYBIS(METHYLENE)BIS(2-ETHYL-1,3-PROPANEDIOL), 2,2'-[oxybis(methylene)]bis[2-ethyl-3-propanediol, 3-Propanediol,2,2'-[oxybis(methylene)]bis[2-ethyl-1, 2,2'-[oxybis(methylene)]bis[2-ethylpropane-1,3-diol], Ditrimethylol, 1,3-Pr, 23235-61-2, Ditrimethylolpropane, Di-Trimethylolpropane, 2,2'-(oxydimethanediyl)bis(2-ethylpropane-1,3-diol), UNII-53E6MN32Z5, DTXSID9044879, 53E6MN32Z5, EINECS 245-509-0, BISTRIMETHYLOLPROPANE, DITRIMETHYLOL PROPANE, DTXCID7024879, EC 245-509-0, BIS(1,1-DIMETHYLOLPROPYL)DIMETHYL ETHER, 3,3,7,7-TETRAKIS(HYDROXYMETHYL)-5-OXANONANE, 2,2'-(OXYDIMETHYLENE)BIS(2-ETHYL-1,3-PROPANEDIOL), RefChem:135225, 245-509-0, Di(trimethylolpropane), Di(trimethylol propane), 1,3-Propanediol, 2,2'-[oxybis(methylene)]bis[2-ethyl-, 2,2'-(Oxybis(methylene))bis(2-ethylpropane-1,3-diol), MFCD00192117, 2-[2,2-bis(hydroxymethyl)butoxymethyl]-2-ethylpropane-1,3-diol, 2,2'-(Oxybis(methylene))bis(2-ethylpropane-1,3-diol)(Flakes or Chunks), 2-ethyl-2-{[2-ethyl-3-hydroxy-2-(hydroxymethyl)propoxy]methyl}propane-1,3-diol, 2,2'-[Oxybis(methylene)]bis[2-ethylpropane-1,3-diol], 1,3-Propanediol, 2,2'-(oxybis(methylene))bis(2-ethyl-, SCHEMBL45482, Di(trimethylolpropane), 97%, CHEMBL3188200, Di(trimethylolpropane), >/=98%, Tox21_301690, AKOS015915906, NCGC00256055-01, AS-69320, CAS-23235-61-2, CS-0320640, D4538, NS00004595, E78830, Bis[2-ethyl-2,2-bis(hydroxymethyl)ethyl] Ether, F723390, 2,2'-Oxybis(methylene)bis(2-ethyl-1,3-propanediol), Q22829780, 2-[2,2-bis(hydroxymethyl)butoxymethyl]-2-ethyl-propane-1,3-diol
Di-Trimethylolpropane is a polyhydric alcohol derived from trimethylolpropane, characterized by the presence of multiple hydroxyl groups that provide high reactivity.
Di-Trimethylolpropane is typically obtained as a white crystalline solid or a viscous liquid depending on purity and hydration, and is soluble in water as well as many polar organic solvents.
Due to its multifunctional hydroxyl structure, Di-Trimethylolpropane serves as an important intermediate in the production of alkyd resins, polyester resins, polyurethane foams, and coatings, where it imparts improved hardness, flexibility, and chemical resistance.
Di-Trimethylolpropane is also used as a crosslinking agent, stabilizer in lubricants, and modifier in adhesives and sealants.
Di-Trimethylolpropane's ability to enhance thermal stability and mechanical performance makes it valuable in high-performance polymers and specialty applications.
Proper handling is required, as with other polyols, to prevent moisture absorption and ensure stability during processing and storage.
Di-Trimethylolpropane can be used for the synthesis of lipase catalyzed hyperbranched polymers.
Di-Trimethylolpropane can also be used in the formation of biodegradable polymers for drug delivery applications
Di-Trimethylolpropane is a monomeric unit with primary hydroxyl groups, that can be used as a tetrafunctional core molecule.
Di-Trimethylolpropane is a highly functional polyhydric alcohol that belongs to the family of polyols and is structurally derived from trimethylolpropane.
Di-Trimethylolpropane contains six hydroxyl (–OH) groups in its molecule, giving it a high degree of reactivity and making it particularly valuable as a crosslinking and branching agent in polymer chemistry.
In its pure form, Di-Trimethylolpropane is typically obtained as a white to off-white crystalline solid or a viscous, wax-like material, depending on its hydration state and processing conditions.
Di-Trimethylolpropane is odorless or has only a faintly sweet odor, and it dissolves readily in water and in many polar organic solvents, while showing limited solubility in nonpolar media.
The multiple hydroxyl functionalities in its structure make it hygroscopic, so Di-Trimethylolpropane readily absorbs moisture from the environment if not properly sealed during storage.
From an industrial perspective, Di-Trimethylolpropane is used as an important intermediate in the synthesis of specialty resins, coatings, and elastomers.
Di-Trimethylolpropane plays a key role in the manufacture of alkyd resins and polyester resins, where its multifunctional hydroxyl groups introduce branching and crosslinking points, leading to enhanced hardness, durability, and resistance to solvents and chemicals.
In polyurethane chemistry, Di-Trimethylolpropane improves the rigidity, dimensional stability, and abrasion resistance of foams, elastomers, and coatings, while at the same time contributing to improved adhesion and surface properties.
Its chemical structure also makes Di-Trimethylolpropane a preferred choice in the formulation of powder coatings, where it improves flow, gloss, and overall film performance.
Beyond resins and coatings, Di-Trimethylolpropane finds application as a stabilizer in lubricants, where it improves thermal resistance and oxidation stability, extending the service life of oils and greases exposed to high temperatures.
Di-Trimethylolpropane is also incorporated into adhesives and sealants as a reactive modifier, imparting flexibility while maintaining strength and adhesion.
In electrical and electronic materials, Di-Trimethylolpropane enhances insulation stability and resistance to degradation under thermal and oxidative stress.
Additionally, Di-Trimethylolpropane is sometimes used in plasticizers, synthetic lubricants, and esters, contributing to low volatility and good lubricity.
The benefits of using Di-Trimethylolpropane are strongly tied to its multifunctionality: the six hydroxyl groups provide multiple reactive sites for esterification, etherification, and urethane formation, enabling the design of polymers with tailored properties such as improved hardness, scratch resistance, elasticity, and weatherability.
These qualities make Di-Trimethylolpropane indispensable in industries ranging from automotive coatings and industrial machinery to construction materials and consumer goods.
From a safety and handling perspective, Di-Trimethylolpropane is considered of relatively low acute toxicity but, like other polyols, may cause irritation to the skin, eyes, or respiratory tract upon prolonged or repeated contact.
Careful handling in well-ventilated environments, along with the use of gloves and protective eyewear, is recommended.
Because of Di-Trimethylolpropane's hygroscopic nature, storage should be in tightly sealed containers, protected from moisture, heat, and direct sunlight to maintain product stability and avoid degradation.
Di-Trimethylolpropane is chemically stable under normal storage and processing conditions, but care should be taken to avoid strong oxidizing agents.
In summary, Di-Trimethylolpropane is a versatile, highly reactive polyol whose multifunctional hydroxyl structure makes it an essential building block in modern polymer chemistry.
Di-Trimethylolpropane's ability to impart crosslinking, improve thermal and mechanical stability, and enhance resistance properties ensures its continued importance in coatings, resins, adhesives, lubricants, and a wide variety of high-performance materials.
Market Overview of Di-Trimethylolpropane:
The global Di-Trimethylolpropane market is experiencing steady expansion, valued at around USD 1.2 billion in 2023 and projected to reach more than USD 2.3 billion by 2032, growing at a CAGR of roughly 7–9 %.
This growth is driven by rising demand in coatings, adhesives, sealants, polyurethanes, and specialty resins, where Di-Trimethylolpropane’s multifunctional hydroxyl structure provides superior crosslinking, durability, and chemical resistance.
Asia-Pacific currently dominates due to rapid industrialization in China and India, while North America and Europe remain strong markets, supported by innovation and stringent environmental regulations that encourage low-VOC and high-performance formulations.
Key challenges include raw material price volatility and regulatory compliance costs, but these are offset by opportunities in bio-based polyols, UV-curable systems, and emerging applications in electrical insulation and advanced elastomers.
With its ability to enhance thermal stability, mechanical strength, and sustainability performance, Di-Trimethylolpropane is positioned as an increasingly critical raw material across multiple high-growth industrial sectors.
Applications of Di-Trimethylolpropane:
Di-Trimethylolpropane can be used for the synthesis of lipase catalyzed hyperbranched polymers.
Di-Trimethylolpropane can also be used in the formation of biodegradable polymers for drug delivery applications.
Di-Trimethylolpropane is applied across a wide spectrum of industries due to its multifunctional hydroxyl structure, which makes it an excellent crosslinker and resin modifier.
In the coatings and paints sector, Di-Trimethylolpropane is used in alkyd, polyester, polyurethane, and powder coatings to improve hardness, scratch resistance, chemical durability, and weatherability, with major applications in automotive and industrial finishes.
Within polyurethane systems, Di-Trimethylolpropane enhances mechanical strength, dimensional stability, and abrasion resistance, making it valuable in foams, elastomers, adhesives, and construction materials.
Di-Trimethylolpropane is also essential in polyester and alkyd resin production, where it introduces branching that increases thermal and chemical stability in long-lasting varnishes and protective coatings.
In adhesives and sealants, Di-Trimethylolpropane contributes to stronger bonding, flexibility, and resistance against heat, moisture, and chemicals, while in the lubricants industry, it is used to synthesize synthetic esters that provide superior lubricity, oxidation stability, and low volatility for high-performance oils and hydraulic fluids.
Additional applications include UV-curable systems, where it improves curing behavior and gloss, electrical and electronic materials, where it enhances insulation and thermal resistance, and specialty plastics and elastomers, where it improves toughness and chemical resistance.
This broad application range makes Di-Trimethylolpropane a critical component in the development of durable, high-performance, and increasingly eco-friendly materials.
Coatings & Paints:
Di-Trimethylolpropane is widely used in the formulation of alkyd, polyester, and polyurethane coatings, where its multifunctional hydroxyl groups provide high crosslink density.
This results in coatings with excellent hardness, scratch resistance, chemical resistance, and weatherability, making it valuable in automotive paints, industrial finishes, powder coatings, and protective marine coatings.
Polyurethane Systems:
In polyurethane foams, elastomers, and adhesives, Di-Trimethylolpropane acts as a crosslinking agent, improving dimensional stability, abrasion resistance, and mechanical strength.
Di-Trimethylolpropane enhances adhesion, durability, and flexibility, which are crucial in construction materials, flooring systems, and sealants.
Polyester & Alkyd Resins:
Di-Trimethylolpropane is a key raw material in polyester resins and alkyd resin synthesis, where it introduces branching that improves thermal stability, chemical resistance, and gloss retention.
These resins are widely used in paints, varnishes, and surface coatings that require long-term durability.
Adhesives & Sealants:
Its multifunctional nature makes Di-Trimethylolpropane a reactive modifier in adhesives and sealant formulations, where it enhances bond strength, flexibility, and resistance to heat, water, and chemicals.
Applications include packaging, construction joints, electronics assembly, and automotive bonding.
Lubricants & Synthetic Esters:
Di-Trimethylolpropane is used to produce synthetic esters for lubricants and hydraulic fluids.
These esters provide oxidation stability, low volatility, and excellent lubricity, making them ideal for high-performance engine oils, turbine lubricants, compressor oils, and aviation fluids.
Powder Coatings & UV-Curable Systems:
In powder coatings and UV-curable resins, Di-Trimethylolpropane improves flow, curing behavior, and final film properties, delivering coatings with high gloss, strong adhesion, and durability.
Di-Trimethylolpropane is especially important in eco-friendly, low-VOC formulations for industrial and consumer applications.
Electrical & Electronic Applications:
Thanks to its ability to impart thermal stability and electrical insulation, Di-Trimethylolpropane-modified resins are used in wire enamels, circuit board coatings, encapsulation resins, and insulating varnishes, where resistance to heat and oxidation is critical.
Plastics & Elastomers:
In plastics and rubber-like materials, Di-Trimethylolpropane functions as a chain extender and crosslinker, providing toughness, elasticity, and chemical resistance.
Di-Trimethylolpropane is employed in specialty elastomers, engineering plastics, and thermoset systems.
Benefits of Di-Trimethylolpropane:
Di-Trimethylolpropane offers a range of significant benefits that make it highly valued across the polymer, coatings, and specialty chemicals industries.
Di-Trimethylolpropane's multifunctional hydroxyl groups provide exceptional reactivity, enabling the creation of highly crosslinked polymer networks with improved mechanical strength, hardness, and dimensional stability.
In coatings and resins, this translates into long-lasting durability, scratch resistance, and excellent chemical resistance, making finished products more reliable under harsh conditions.
Another major advantage is Di-Trimethylolpropane's ability to enhance thermal stability and oxidation resistance, which is especially beneficial in high-performance lubricants, electrical insulation materials, and industrial coatings exposed to heat and stress.
Di-Trimethylolpropane also improves adhesion and flexibility in adhesives and sealants, ensuring stronger bonds that withstand water, solvents, and temperature fluctuations.
From a processing perspective, Di-Trimethylolpropane contributes to better flow, curing behavior, and gloss retention, particularly in powder and UV-curable coatings.
Beyond performance, Di-Trimethylolpropane supports the development of eco-friendly and low-VOC formulations, aligning with stricter environmental regulations and the global trend toward sustainable materials.
Collectively, these benefits make Di-Trimethylolpropane indispensable in producing high-quality, durable, and environmentally responsible materials used in automotive, construction, electronics, and advanced manufacturing sectors.
Production of Di-Trimethylolpropane:
The production of Di-Trimethylolpropane is based on the chemistry of trimethylolpropane, a triol obtained by reacting n-butyraldehyde with formaldehyde under basic catalytic conditions such as sodium hydroxide or calcium hydroxide.
Once Trimethylolpropane is synthesized, Di-Trimethylolpropane is produced through a dimerization process, in which two Trimethylolpropane molecules are chemically linked, creating a polyol with six hydroxyl groups.
This transformation typically requires carefully controlled temperature, catalyst selection, and reaction environment to maximize yield and minimize by-products like mono-functional impurities or oligomers that may interfere with downstream applications.
After synthesis, the product undergoes purification steps—including vacuum distillation, crystallization, or solvent treatment—to remove residual aldehydes, formaldehyde traces, and unreacted materials.
Industrial processes are designed to optimize efficiency while ensuring compliance with safety and environmental regulations, given the hazardous nature of formaldehyde feedstock.
Recent research and industrial innovation are also exploring bio-based routes for producing Trimethylolpropane and subsequently Di-Trimethylolpropane, using renewable raw materials such as bio-butanol and biomass-derived formaldehyde substitutes, which can reduce carbon footprint and align with the growing demand for sustainable and eco-friendly polyols.
Synthesis of Di-Trimethylolpropane:
The synthesis of Di-Trimethylolpropane begins with the production of its precursor, Trimethylolpropane, which is obtained through the aldol condensation of n-butyraldehyde with formaldehyde in the presence of a basic catalyst such as sodium hydroxide or calcium hydroxide.
This reaction proceeds via a combination of aldol addition and Cannizzaro-type reactions, yielding Trimethylolpropane as the main product.
To form Di-Trimethylolpropane, two Trimethylolpropane molecules are then coupled under controlled conditions through etherification or condensation pathways, generating a dimeric polyol containing six hydroxyl groups.
The process requires careful control of temperature, pH, and catalyst selection to ensure high selectivity for the dimer and to limit formation of oligomers or other side products.
Following synthesis, purification steps such as vacuum distillation, crystallization, or solvent extraction are employed to obtain Di-Trimethylolpropane with the required purity for industrial applications.
Advances in catalytic systems and reaction engineering have improved both yield and process sustainability, while ongoing research explores bio-based synthesis routes using renewable feedstocks like bio-butanol and biomass-derived aldehydes to reduce reliance on petrochemicals and meet growing demand for sustainable polyols.
History of Di-Trimethylolpropane:
The history of Di-Trimethylolpropane is closely linked to the development of polyols in the early 20th century, when the chemical industry was seeking new multifunctional alcohols for use in resins, coatings, and plastics.
Di-Trimethylolpropane's precursor, Trimethylolpropane, was first synthesized in the 1930s through the reaction of n-butyraldehyde with formaldehyde, and quickly became an important building block in alkyd resins and polyester formulations.
As demand for higher-functionality polyols grew during the mid-20th century—particularly for applications in high-performance coatings, polyurethanes, and lubricants—researchers explored ways to modify Trimethylolpropane to increase its hydroxyl functionality.
This led to the development of Di-Trimethylolpropane, essentially a dimer of Trimethylolpropane with six hydroxyl groups, which provided superior crosslinking ability and durability in polymer networks.
By the 1960s–1970s, commercial production of Di-Trimethylolpropane had begun, primarily in Europe, the United States, and later in Asia, where the growth of the automotive and construction industries drove adoption in coatings and adhesives.
Over time, Di-Trimethylolpropane established itself as a specialty polyol valued for its role in powder coatings, UV-curable systems, and synthetic lubricants.
In recent decades, the focus has shifted toward sustainability and environmental compliance, prompting efforts to improve process efficiency, reduce formaldehyde emissions, and investigate bio-based synthesis routes.
Today, Di-Trimethylolpropane is recognized as a mature but strategically important polyol, with ongoing relevance in modern eco-friendly, high-performance material formulations across multiple industries.
Handling and Storage of Di-Trimethylolpropane:
Handling:
Work in well-ventilated areas or under a chemical fume hood.
Avoid inhalation of vapors, mists, or dusts and prevent direct contact with skin and eyes.
Do not eat, drink, or smoke while handling the substance.
Use closed systems or appropriate local exhaust ventilation to minimize exposure.
Practice good industrial hygiene at all times.
Storage:
Store in tightly sealed containers made of compatible materials (e.g., stainless steel, HDPE).
Keep in a cool, dry, well-ventilated area away from direct heat, sparks, open flames, strong acids, and oxidizing agents.
Protect from moisture, as Di-Trimethylolpropane is hygroscopic.
Recommended storage temperature: ambient to ≤25 °C.
Stability and Reactivity of Di-Trimethylolpropane:
Stability:
Stable under normal temperature and pressure when stored and handled properly.
Reactivity:
Avoid contact with strong oxidizing agents (e.g., peroxides, nitric acid) and strong acids.
May react with acid chlorides or acid anhydrides, releasing heat and irritating vapors.
Decomposition products:
Thermal decomposition may produce carbon monoxide (CO), carbon dioxide (CO₂), and other organic vapors.
Incompatibilities:
Strong oxidizers, strong acids, acid chlorides, acid anhydrides.
First Aid Measures of Di-Trimethylolpropane:
Inhalation:
Remove person to fresh air and keep at rest in a position comfortable for breathing.
If symptoms such as coughing, dizziness, or breathing difficulty occur, seek medical attention.
Skin contact:
Immediately remove contaminated clothing and wash affected skin with soap and water for at least 15 minutes.
If irritation persists, get medical advice.
Eye contact:
Rinse cautiously with water for at least 15 minutes.
Remove contact lenses if present and easy to do.
Seek medical attention immediately.
Ingestion:
Rinse mouth with water.
Do not induce vomiting.
Seek immediate medical care.
Firefighting Measures of Di-Trimethylolpropane:
Suitable extinguishing media:
Alcohol-resistant foam, dry chemical powder, carbon dioxide (CO₂).
Water spray can be used to cool containers but may not be effective for extinguishing fire.
Specific hazards:
Combustible.
Vapors may form explosive mixtures with air.
Thermal decomposition releases toxic fumes (CO, CO₂, formaldehyde-related vapors).
Protective equipment:
Firefighters should wear self-contained breathing apparatus (SCBA) and full protective clothing.
Use water spray to cool unopened containers exposed to fire.
Accidental Release Measures of Di-Trimethylolpropane:
Personal precautions:
Evacuate unnecessary personnel, ensure proper ventilation, and wear suitable personal protective equipment (gloves, goggles, respirator). Remove all ignition sources.
Containment:
Stop the leak if safe to do so.
Prevent entry into drains, surface water, or confined spaces.
Cleanup methods:
Absorb spill with inert material (sand, vermiculite, earth) and place in labeled containers for disposal.
Wash contaminated surfaces with water and detergent.
Dispose of waste in accordance with local, regional, and national regulations.
Exposure Controls / Personal Protection of Di-Trimethylolpropane:
Engineering controls:
Use local exhaust ventilation or a chemical fume hood to maintain airborne concentrations as low as reasonably achievable.
Occupational exposure limits:
No specific exposure limit established for Di-Trimethylolpropane.
Handle as a potentially hazardous polyol; follow general polyol/amine guidelines where available.
Personal protective equipment (PPE):
Respiratory protection:
NIOSH-approved organic vapor respirator if ventilation is inadequate.
Eye protection:
Chemical safety goggles or face shield.
Skin protection:
Nitrile, neoprene, or butyl rubber gloves; chemical-resistant clothing or apron.
General hygiene:
Wash hands and exposed skin thoroughly after handling.
Remove contaminated clothing and wash before reuse.
Identifiers of Di-Trimethylolpropane:
Chemical name: Di-Trimethylolpropane
Synonyms: Di-TMP, 2,2-bis[(hydroxymethyl)propane-1,3-diyl]bis(trimethylolpropane), TMP dimer
Molecular formula: C₁₅H₃₂O₆
Molecular weight: ~308.41 g/mol
CAS number: 23235-61-2
EC number (EINECS): 245-475-0
UN number (Transport): Not classified as dangerous goods under UN transport regulations
IUPAC name: 2-[bis(hydroxymethyl)-2-hydroxymethylpropoxy]-2-ethyl-1,3-propanediol
InChI: InChI=1S/C15H32O6/c1-9(7-13(18)11-15(21,22)12-14(19)20)21-10(2)8-16,17/h9-14,16-22H,7-8H2,1-2H3
InChI Key: OYBFEXAKBDAJHR-UHFFFAOYSA-N
SMILES: CC(COC(C)(CO)CO)C(CO)(CO)CO
Product Number: D4538
Purity / Analysis Method : >98.0%(GC)
Molecular Formula / Molecular Weight: C12H26O5 = 250.34
Physical State (20 deg.C): Solid
Storage Temperature : Room Temperature (Recommended in a cool and dark place, <15°C)
CAS RN: 23235-61-2
Reaxys Registry Number: 1860782
PubChem Substance ID: 253661644
MDL Number: MFCD00192117
Molecular Formula: C12H26O5
Molecular Weight: 250.33
CAS Number: 23235-61-2
Catalog Number: 23235-61-2
IUPAC Name: 2-[2,2-bis(hydroxymethyl)butoxymethyl]-2-ethylpropane-1,3-diol
Canonical SMILES: CCC(CO)(CO)COCC(CC)(CO)CO
InChI: InChI=1S/C12H26O5/c1-3-11(5-13,6-14)9-17-10-12(4-2,7-15)8-16/h13-16H,3-10H2,1-2H3
InChI Key: WMYINDVYGQKYMI-UHFFFAOYSA-N
Linear Formula: O[CH2C(C2H5)(CH2OH)2]2
CAS Number: 23235-61-2
Molecular Weight: 250.33
Beilstein: 1860782
EC Number: 245-509-0
MDL number: MFCD00192117
UNSPSC Code: 12162002
PubChem Substance ID: 24866062
NACRES: NA.23
Chemical name: Di-Trimethylolpropane
Common abbreviation: Di-TMP
CAS Number: 23235-61-2
EC Number (EINECS): 245-475-0
MDL Number: MFCD00064267
PubChem CID: 95482
ChemSpider ID: 86169
RTECS Number: Not assigned (generally handled under polyols category)
UN Number (Transport): Not classified as hazardous for transport under UN regulations
IUPAC Name: 2-[bis(hydroxymethyl)-2-hydroxymethylpropoxy]-2-ethyl-1,3-propanediol
Molecular Formula: C₁₅H₃₂O₆
Molecular Weight: 308.41 g/mol
InChI: InChI=1S/C15H32O6/c1-9(7-13(18)11-15(21,22)12-14(19)20)21-10(2)8-16,17/h9-14,16-22H,7-8H2,1-2H3
InChI Key: OYBFEXAKBDAJHR-UHFFFAOYSA-N
SMILES: CC(COC(C)(CO)CO)C(CO)(CO)CO
Properties of Di-Trimethylolpropane:
Quality Level: 200
Assay: 97%
bp: 215 °C/4 mmHg (lit.)
mp: 108-111 °C (lit.)
SMILES string: CCC(CO)(CO)COCC(CC)(CO)CO
InChI: 1S/C12H26O5/c1-3-11(5-13,6-14)9-17-10-12(4-2,7-15)8-16/h13-16H,3-10H2,1-2H3
InChI key: WMYINDVYGQKYMI-UHFFFAOYSA-N
XLogP3: -0.6
Hydrogen Bond Donor Count: 4
Hydrogen Bond Acceptor Count: 5
Rotatable Bond Count: 10
Exact Mass: 250.17802393 g/mol
Monoisotopic Mass: 250.17802393 g/mol
Topological Polar Surface Area: 90.2Ų
Heavy Atom Count: 17
Complexity: 167
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 to off-white crystalline solid or waxy, viscous substance
Odor: Odorless or faint, sweet polyol-like odor
Molecular formula: C₁₅H₃₂O₆
Molecular weight: 308.41 g/mol
CAS number: 23235-61-2
Melting point: ~108–112 °C
Boiling point: Decomposes before boiling (thermal degradation above ~250 °C)
Flash point: >200 °C (closed cup; low volatility)
Density: ~1.16–1.18 g/cm³ at 20 °C
Vapor pressure: Negligible at ambient temperature
Autoignition temperature: >350 °C (approximate)
pH (aqueous solution): Neutral to slightly acidic
Specifications of Di-Trimethylolpropane:
Appearance: White to Almost white powder to crystal
Purity(GC): min. 98.0 %
Melting point: 109.0 to 113.0 °C
