PRODUCTS

PEROXIDE, DIBENZOYL

Peroxide, dibenzoyl is also used as a bleach in the food industry.
Peroxide, dibenzoyl is used in the treatment of acne vulgaris.
Peroxide, dibenzoyl is primarily used in the manufacture of polymers, as a polymerisation initiator.

CAS Number:94-36-0
EC Number: 202-327-6
Molecular Formula: C₁₄H₁₀O₄
Molecular Weight: 242.23 g/mol

SYNONYMS:
Dibenzoyl peroxide, Benzoyl peroxide, Benzoperoxide, Bis(benzoyl) peroxide, Benzoyl superoxide, Peroxide, dibenzoyl, Dibenzoyl dioxide, Benzoperoxyd, BPO, DBPO, Perkadox B, Lucidol BPO, Luperox A75, UNII-F4O5Y9OO1Z, fostex mytolac peroxyde de benzoyle lucidol 50P asidopan diphenylglyoxal peroxide vanoxide aksil 5 dry and clear duresthin 5, Peroxide, dibenzoyl, Acetoxyl, Akneroxid 5, Asidopan, Benoxyl, Benzac, Benzoic acid, peroxide, Benzol peroxide, Benzoperoxide, Benzoyl superoxide, Benzoylperoxid, Benzoyl peroxyde, Dibenzoyl peroxide, Dibenzoylperoxid, Dibenzoylperoxyde, Diphenylglyoxal peroxide, Dry and Clear, Duresthin 5, Eloxyl, Epi-Clear, G20, Lucidol, Lucidol B 50, Lucidol G 20, Luperco AST, Mytolac, Nayper BO, Oxy 5, Oxylite, Panoxyl, Perossido di benzoile, Peroxyde de benzoyle, Persa-Gel, Persadox, Resdan Akne, Theraderm, Acnegel, Aztec BPO, Benzaknew, BZF-60, Cadet, Cadox, Cadox BS, Clearasil benzoyl peroxide lotion, Clearasil BP acne treatment, Cuticura acne cream, Debroxide, Fostex, Garox, Incidol, Loroxide, Luperco, Luperox FL, NA 2085 (DOT), Nayper B and BO, Norox bzp-250, Norox bzp-C-35, Novadelox, OXY-10, OXY WASH, Quinolor compound, Superox, Topex, UN 2085 (DOT), UN 2086, UN 2088, Vanoxide, Xerac, Acne-Aid Cream, Benzac W, Clear By Design, Abcure S-40-25, Akneroxid L, Akneroxide L, Benzagel 10, Benzaknen, BPO, Brevoxyl, Cadet BPO 78W, Cadox 40E, Dermoxyl, Desanden, Lucidol 78, Lucidol 75FP, Luzidol, Nericur, NSC 675, Oxy-L, Peroxyderm, Peroxydex, Preoxydex, Sanoxit, Xerac BP 10, Xerac BP 5, Triaz, Perkadox 20S, Cadox B, Desquam E, Lucidol (peroxide), Luperco AA, Nyper B, Nyper BMT, W 75, Benzoyl peroxide, Dibenzoyl peroxide, BENZOYL PEROXIDE, 94-36-0, Dibenzoyl peroxide, Benzoyl superoxide, Peroxide, dibenzoyl, Benzoperoxide, Lucidol, Panoxyl, Acetoxyl, Persadox, Benoxyl, Oxylite, benzoyl benzenecarboperoxoate, Dibenzoylperoxid, Benzol peroxide, Benzoylperoxid, Asidopan, Mytolac, Benzac, Eloxyl, BPO, DIBENZOYL PEROXIDE, benzoic peroxyanhydride, Benzoyl, BENZOYL BENZENECARBOPEROXOATE, Benzoyl peroxide, Benzoyl peroxide paste, Benzamycin, BENZYL PEROXIDE, Benzoyl peroide, Hydrous Benzoyl Peroxide - API (IP), Benzoic Peroxyanhydride, Benzoyl Peroxide, Hydrous, Acetoxyl, Acne-Aid Cream, Acnegel, Acnezoyl, Benoxyl, Benzac, Benzagel, Benzaknen, Benzashave, Benzoperoxide, Benzoyl Superoxide, Brevoxyl, Debroxide, Degament H, Desanden, Desquam E, Desquam X, Dibenzoyl peroxide, Diphenylglyoxal peroxide, Dry and Clear, Loroxide, Lucidol, Lucidol (peroxide), Peroxide, dibenzoyl (USP),

Peroxide, dibenzoyl works by decreasing inflammation and killing or preventing the growth of bacteria on your skin.
Peroxide, dibenzoyl belongs to a group of medications called antiseptics.
Peroxide, dibenzoyl, more commonly known as Peroxide, dibenzoyl (BPO), is one of the most widely used organic peroxides in both industrial manufacturing and pharmaceutical applications.

Peroxide, dibenzoyl consists of two benzoyl groups linked by a peroxide (-O-O-) bond, which readily decomposes to generate highly reactive free radicals.
These free radicals initiate polymerization reactions, making Peroxide, dibenzoyl an essential polymerization initiator, curing agent, and cross-linking agent for numerous plastics, resins, elastomers, and composite materials.

Peroxide, dibenzoyl, structural formula is (C6H5−C(=O)O−)2.
Peroxide, dibenzoyl is a chemical compound (specifically an organic peroxide) that is often abbreviated as (BzO)2.
Structurally, Peroxide, dibenzoyl consists of a peroxide (-O−O−) and two benzoyl (C)yl groups linked together.

Peroxide, dibenzoyl can be defined as the −C(=O)−, Bz) group.
Peroxide, dibenzoyl is a white granular solid with a mild benzaldehyde odor.
Peroxide, dibenzoyl is sparingly soluble in water, but soluble in acetone, ethanol and many other organic solvents.

Peroxide, dibenzoyl is incompatible with strong oxidizer, reducing agents, acids, bases, alcohols and metals.
Some evidence suggests that Peroxide, dibenzoyl has an anti-inflammatory effect as well.
In micromolar concentrations, Peroxide, dibenzoyl prevents neutrophils from releasing reactive oxygen species, part of the inflammatory response in acne.

Peroxide, dibenzoyl appears as a white granular solid or powder.
Peroxide, dibenzoyl appears as odorless white powder or granules.
Peroxide, dibenzoyl is a carbonyl compound.

Peroxide, dibenzoyl has been formulated as products with either a single active ingredient, or with [erythromycin], [clindamycin], or [adapalene].
After administration, the peroxide bond is cleaved, allowing benzoyloxy radicals to nonspecifically interact with proteins.
This treatment decreases keratin and sebum around follicles, as well as increasing turnover of epithelial cells.
Peroxide, dibenzoyl, in combination with erythromycin, was granted FDA approval on 26 October 1984.

Peroxide, dibenzoyl is a chemical compound (specifically, an organic peroxide) with the structural formula (C6H5−C(=O)O−)2, often abbreviated as (BzO)2.
Peroxide, dibenzoyl can be described structurally as two benzoyl (C6H5−C(=O)−, Bz) groups connected by a peroxide (−O−O−).
Peroxide, dibenzoyl is a white granular solid with a faint odour of benzaldehyde, poorly soluble in water but soluble in acetone, ethanol, and many other organic solvents.

Peroxide, dibenzoyl is an oxidizer, which is principally used in the production of polymers.
Some versions are sold mixed with antibiotics such as clindamycin.
Peroxide, dibenzoyl is on the World Health Organization's List of Essential Medicines.

Peroxide, dibenzoyl is available as an over-the-counter and generic medication.
In 2021, Peroxide, dibenzoyl was the 284th most commonly prescribed medication in the United States, with more than 700,000 prescriptions.
Peroxide, dibenzoyl is a peroxide with antibacterial, irritant, keratolytic, comedolytic, and anti-inflammatory activity.

Upon topical application, Peroxide, dibenzoyl decomposes to release oxygen which is lethal to the bacteria Proprionibacterium acnes.
Due to its irritant effect, Peroxide, dibenzoyl increases turnover rate of epithelial cells, thereby peeling the skin and promoting the resolution of comedones.
Peroxide, dibenzoyl is a peroxide derivative that has been used topically for BURNS and as a dermatologic agent in the treatment of ACNE and POISON IVY DERMATITIS.

Peroxide, dibenzoyl is a white particle moistened with 25% water.
This diacyl peroxide, Peroxide, dibenzoyl, with the chemical formula C14H10O4, not only serves as an initiator for the (co)polymerization of styrene, acrylonitrile, acrylates, methacrylates, and vinyl acetate, but it also enhances the overall efficiency of these processes.

Additionally, its versatility makes Peroxide, dibenzoyl a valuable component in a wide range of polymer formulations.
Furthermore, its effectiveness in initiating these processes makes Peroxide, dibenzoyl a valuable component in various polymer formulations.
Known as Peroxide, dibenzoyl, BPO, and benzoperoxide, Peroxide, dibenzoyl offers versatile applications in various polymer processes.

Peroxide, dibenzoyl is one of the most important organic peroxides in terms of applications.
Peroxide, dibenzoyl is an organic compound in the peroxide family.
Peroxide, dibenzoyl is formed by two benzoyl groups which are connected by a peroxide link.

Peroxide, dibenzoyl is an organic compound.
When used as an active drug ingredient, the established name is Peroxide, dibenzoyl.
Do not use more or less of it or use Peroxide, dibenzoyl more often than directed by your doctor.

Apply a small amount of the Peroxide, dibenzoyl product to one or two small areas you want to treat for 3 days when you begin to use this medication for the first time.
If no reaction or discomfort occurs, use Peroxide, dibenzoyl as directed on the package or on your prescription label.
Peroxide, dibenzoyl is an organic peroxide widely used as a polymerization initiator, bleaching agent, and acne treatment.

Peroxide, dibenzoyl is a white crystalline solid, highly reactive, and serves as a powerful oxidizing agent.
Peroxide, dibenzoyl also has major applications in antiseptic and bleaching properties.
Peroxide, dibenzoyl serves as a catalyst for polyester thermoset resins and as a hardener to start the polymerization process.

USES and APPLICATIONS of PEROXIDE, DIBENZOYL:
Peroxide, dibenzoyl treats acne or rosacea.
Peroxide, dibenzoyl is primarily used as a free-radical polymerization initiator in the manufacture of plastics, synthetic resins, coatings, adhesives, and composite materials.
During thermal decomposition, Peroxide, dibenzoyl generates free radicals that initiate polymerization of acrylic monomers, methacrylates, styrene, vinyl esters, and numerous other unsaturated compounds.

Peroxide, dibenzoyl can also be used in other applications: as an oxidant in anti-acne formulations, as a hardener/cross-linking agent (in production of unsaturated polyester resins and silicone rubbers) and as a bleaching agent.
Additionally, Peroxide, dibenzoyl is used to cure unsaturated polyester, vinyl ester, and acrylic thermosetting resins at ambient temperatures.

In the United States, Peroxide, dibenzoyl may be used as an active ingredient in OTC drug products.
Peroxide, dibenzoyl is used to treat mild to moderate acne.
In the plastics industry, Peroxide, dibenzoyl is widely employed for producing polymethyl methacrylate (PMMA), polyester resins, acrylic resins, thermosetting plastics, reinforced composites, fiberglass products, and molded polymer components.

Peroxide, dibenzoyl is one of the most commonly used catalysts for curing unsaturated polyester resins in the production of boats, automotive parts, construction panels, pipes, storage tanks, and wind turbine components.
Peroxide, dibenzoyl is widely utilized as a radical initiator to induce polymerizations.

Peroxide, dibenzoyl finds applications for acne treatment, for bleaching flour, hair and teeth and for cross-linking polyester resins.
In the rubber industry, Peroxide, dibenzoyl functions as a cross-linking agent for silicone rubber, fluorinated elastomers, polyethylene, ethylene-vinyl acetate (EVA), and specialty synthetic rubbers.

Cross-linking improves elasticity, heat resistance, compression set, mechanical strength, and long-term durability of finished rubber products.
Peroxide, dibenzoyl is extensively used in the pharmaceutical and cosmetic industries as an active ingredient in topical acne medications because of its antibacterial activity against Cutibacterium acnes, mild exfoliating effect, and ability to reduce follicular blockage.

Peroxide, dibenzoyl is widely utilized as a radical initiator to induce polymerizations.
Peroxide, dibenzoyl finds applications for acne treatment, for bleaching flour, hair and teeth and for cross-linking polyester resins.
Peroxide, dibenzoyl also has major applications in antiseptic and bleaching properties.

Peroxide, dibenzoyl serves as a catalyst for polyester thermoset resins and as a hardener to start the polymerization process.
Peroxide, dibenzoyl is a widely used reagent in pharmaceutical manufacturing, particularly in topical medications for acne treatment.
Peroxide, dibenzoyl functions as an oxidizing agent and is also used in polymer chemistry.

In laboratory and industrial organic synthesis, Peroxide, dibenzoyl serves as an efficient free-radical source for halogenation, oxidation, graft polymerization, and numerous radical-mediated synthetic transformations.
Peroxide, dibenzoyl is also used in dental acrylic formulations, printing inks, adhesives, sealants, coatings, and specialty polymer formulations.

Peroxide, dibenzoyl is an oxidizing agent mainly used in polymer production.
Peroxide, dibenzoyl is mainly used in plastics production and in bleaching flour, hair, plastics and textiles.
Peroxide, dibenzoyl has been used as a bleaching agent and as a water disinfectant.

Peroxide, dibenzoyl is most commonly used as a medication to treat acne, either alone or in combination with other treatments.
In elastomer technology, Peroxide, dibenzoyl produces durable carbon-carbon cross-links rather than sulfur cross-links, resulting in rubber products with superior heat resistance, chemical resistance, aging stability, and electrical insulation properties.

Commercial formulations are typically supplied as wet powders, pastes, dispersions, or phlegmatized products containing water or inert plasticizers.
These formulations significantly improve handling safety while preserving polymerization efficiency.
In pharmaceutical applications, Peroxide, dibenzoyl offers both antimicrobial and keratolytic activity, reducing bacterial populations while promoting exfoliation of dead skin cells.

This dual mechanism has made Peroxide, dibenzoyl one of the most widely used active ingredients for acne treatment worldwide.
Peroxide, dibenzoyl is a commonly used drug in topical treatments for acne.
Its high reactivity, broad industrial compatibility, predictable decomposition kinetics, and effectiveness across numerous polymer systems have established Peroxide, dibenzoyl as one of the world's most important organic peroxide initiators.

In the rubber and plastics industries, Peroxide, dibenzoyl is widely employed to initiate free-radical polymerization of acrylics, methacrylates, styrene, vinyl chloride, and unsaturated polyester resins.
Peroxide, dibenzoyl is also extensively used as a curing catalyst for thermosetting resins and as a cross-linking agent for silicone rubber and specialty elastomers.

Outside industrial applications, Peroxide, dibenzoyl is well known as an active pharmaceutical ingredient in topical acne treatments because of its antimicrobial and keratolytic properties.
Due to its strong oxidizing capability and thermal instability, Peroxide, dibenzoyl requires careful handling, controlled storage conditions, and appropriate temperature management throughout its lifecycle.

Peroxide, dibenzoyl serves as a catalyst for polyester thermoset resins and as a hardener to start the polymerization process.
Peroxide, dibenzoyl is widely utilized as a radical initiator to induce polymerizations.
Peroxide, dibenzoyl finds applications for acne treatment, for bleaching flour, hair and teeth and for cross-linking polyester resins.

Peroxide, dibenzoyl also has major applications in antiseptic and bleaching properties.
Peroxide, dibenzoyl serves as a catalyst for polyester thermoset resins and as a hardener to start the polymerization process.
Peroxide, dibenzoyl is mainly used in production of plastics and for bleaching flour, hair, plastics and textiles.

As a bleach, Peroxide, dibenzoyl has been used as a medication and a water disinfectant.
As a medication, Peroxide, dibenzoyl is mostly used to treat acne, either alone or in combination with other treatments.
Peroxide, dibenzoyl is also used in dentistry for tooth whitening.

MEDICAL USES OF PEROXIDE, DIBENZOYL:
Peroxide, dibenzoyl is effective for treating acne lesions.
Peroxide, dibenzoyl does not induce antibiotic resistance.
Peroxide, dibenzoyl may be combined with salicylic acid, sulfur, erythromycin or clindamycin (antibiotics), or adapalene (a synthetic retinoid).

Two common combination drugs include Peroxide, dibenzoyl/clindamycin and adapalene/Peroxide, dibenzoyl, adapalene being a chemically stable retinoid that can be combined with Peroxide, dibenzoyl unlike tezarotene and tretinoin.
Combination products such as Peroxide, dibenzoyl/clindamycin and Peroxide, dibenzoyl/salicylic acid appear to be slightly more effective than Peroxide, dibenzoyl alone for the treatment of acne lesions.

The combination tretinoin/Peroxide, dibenzoyl was approved for medical use in the United States in 2021.
Peroxide, dibenzoyl for acne treatment is typically applied to the affected areas in gel, cream, or liquid, in concentrations of 2.5% increasing through 5.0%, and up to 10%.
No strong evidence supports the idea that higher concentrations of Peroxide, dibenzoyl are more effective than lower concentrations.

HOW SHOULD PEROXIDE, DIBENZOYL BE USED?
Peroxide, dibenzoyl comes in cleansing liquid or bar, lotion, cream, and gel for use on the skin.
Peroxide, dibenzoyl usually is used one or two times daily.
Start with once daily to see how your skin reacts to this medication.
Follow the directions on the package or on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand.

BENEFITS AND CHARACTERISTICS of PEROXIDE, DIBENZOYL:
Peroxide, dibenzoyl is recognized as one of the most efficient and reliable organic peroxide initiators due to its predictable decomposition behavior and high free-radical generation efficiency.
Peroxide, dibenzoyl provides rapid polymerization initiation over a broad temperature range while maintaining excellent compatibility with numerous monomers and polymer systems.

Peroxide, dibenzoyl enables controlled polymer formation with excellent molecular weight development and uniform polymer structure.
Peroxide, dibenzoyl contributes to high curing efficiency in thermosetting resins, allowing manufacturers to produce strong, dimensionally stable composite materials with excellent mechanical performance.

HISTORY of PEROXIDE, DIBENZOYL:
Peroxide, dibenzoyl was first prepared and described by Justus von Liebig in 1858.
Donald Holroyde Hey FRS (12 September 1904 – 21 January 1987) was a Welsh organic chemist who inferred that the decomposition of Peroxide, dibenzoyl generated free phenyl radicals.

STRUCTURE AND REACTIVITY of PEROXIDE, DIBENZOYL:
The original 1858 synthesis by Liebig reacted benzoyl chloride with barium peroxide, a reaction that probably follows this equation:
2 C6H5C(O)Cl + BaO2 → (C6H5CO)2O2 + BaCl2
Peroxide, dibenzoyl is usually prepared by treating hydrogen peroxide with benzoyl chloride under alkaline conditions.
2 C6H5COCl + H2O2 + 2 NaOH → (C6H5CO)2O2 + 2 NaCl + 2 H2O

The oxygen–oxygen bond in peroxides is weak.
Thus, Peroxide, dibenzoyl readily undergoes homolysis (symmetrical fission), forming free radicals:
(C6H5CO)2O2 → 2 C6H5CO•2

The symbol • indicates that the products are radicals; i.e., they contain at least one unpaired electron.
Such species are highly reactive.
The homolysis is usually induced by heating.

The half-life of Peroxide, dibenzoyl is one hour at 92 °C.
At 131 °C, the half-life is one minute.
In 1901, it was observed that Peroxide, dibenzoyl made the tincture of guaiacum tincture turn blue, a sign of oxygen being released.

Around 1905, Loevenhart reported on the successful use of Peroxide, dibenzoyl to treat various skin conditions, including burns, chronic varicose leg tumors, and tinea sycosis.
Treatment with Peroxide, dibenzoyl was proposed for wounds in 1929, and for sycosis vulgaris and acne varioliformis in 1934.
However, preparations were often of questionable quality.
Peroxide, dibenzoyl was officially approved for the treatment of acne in the US in 1960.

POLYMERIZATION of PEROXIDE, DIBENZOYL:
Peroxide, dibenzoyl is mainly used as a radical initiator to induce chain-growth polymerization reactions, such as for polyester and poly(methyl methacrylate) (PMMA) resins and dental cements and restoratives.
Peroxide, dibenzoyl is the most important among the various organic peroxides used for this purpose, a relatively safe alternative to the much more hazardous methyl ethyl ketone peroxide.
Peroxide, dibenzoyl is also used in rubber curing and as a finishing agent for some acetate yarns.

MECHANISM OF ACTION of PEROXIDE, DIBENZOYL:
Classically, Peroxide, dibenzoyl is thought to have a three-fold activity in treating acne.
Peroxide, dibenzoyl is sebostatic, comedolytic, and inhibits growth of Cutibacterium acnes, the main bacterium associated with acne.
In general, acne vulgaris is a hormone-mediated inflammation of sebaceous glands and hair follicles.

Hormone changes cause an increase in keratin and sebum production, leading to blocked drainage.
C. acnes has many lytic enzymes that break down the proteins and lipids in the sebum, leading to an inflammatory response.
The free-radical reaction of Peroxide, dibenzoyl can break down the keratin, therefore unblocking the drainage of sebum (comedolytic).
Peroxide, dibenzoyl can cause nonspecific peroxidation of C. acnes, making it bactericidal, and it was thought to decrease sebum production, but disagreement exists within the literature on this.

SOLUBILITY of PEROXIDE, DIBENZOYL:
Peroxide, dibenzoyl is soluble in ether and chloroform.
Peroxide, dibenzoyl is slightly soluble in ethanol.
Peroxide, dibenzoyl is insoluble in water.

PHYSICAL and CHEMICAL PROPERTIES of PEROXIDE, DIBENZOYL:
Appearance: White crystalline powder, granules, flakes, or paste depending on commercial formulation.
Odor: Slight characteristic odor or practically odorless.
Physical State: Solid.
Molecular Formula: C₁₄H₁₀O₄.
Molecular Weight: 242.23 g/mol.
Density: Approximately 1.33–1.35 g/cm³ at 20°C.
Melting Point: Does not exhibit a true melting point; decomposes before melting (approximately 103–106°C).
Self-Accelerating Decomposition Temperature (SADT): Depends on formulation and package size; typically around 50–70°C for commercial grades.

Decomposition Temperature: Approximately 103°C.
Flash Point: Not applicable (decomposes before boiling).
Auto-ignition: May undergo self-accelerating decomposition when exposed to heat or contamination.
Water Solubility: Practically insoluble in water.
Solubility: Soluble in acetone, benzene, chloroform, ethyl acetate, and other organic solvents; slightly soluble in alcohols.
Vapor Pressure: Negligible at room temperature.
Partition Coefficient (log Kow): Approximately 3.2.
Refractive Index: Not applicable (solid).
Chemical Nature: Organic peroxide and powerful oxidizing agent.

Functional Group: Peroxide (-O-O-) linkage.
Oxidizing Properties: Strong oxidizer capable of initiating free-radical reactions.
Thermal Stability: Thermally unstable at elevated temperatures.
Shock Sensitivity: Dry material is sensitive to heat, friction, contamination, and mechanical shock.
Light Sensitivity: Slowly decomposes upon prolonged exposure to light.
Moisture Sensitivity: Commercial grades are often supplied wetted with water or plasticizers to improve safety.
Reactivity: Reacts vigorously with reducing agents, amines, acids, bases, combustible materials, heavy metal salts, and accelerators.
Decomposition Products: Carbon dioxide, benzoic acid, benzene derivatives, and oxygen-containing radicals.
Flammability: Not highly flammable itself but greatly accelerates combustion due to its oxidizing properties.

Chemical Name: Dibenzoyl Peroxide
Common Name: Benzoyl Peroxide
CAS Number: 94-36-0
EC Number: 202-327-6
Molecular Formula: C₁₄H₁₀O₄
Molecular Weight: 242.23 g/mol
IUPAC Name: Bis(benzoyl) peroxide
CAS: 94-36-0
IUPAC Name: benzoyl benzenecarboperoxoate

Molecular Formula: C14H10O4
InChI Key: OMPJBNCRMGITSC-UHFFFAOYSA-N
SMILES: O=C(OOC(=O)C1=CC=CC=C1)C1=CC=CC=C1
Molecular Weight (g/mol): 242.23
Form: Wet powder or granules
Assay from Supplier's CofA: ≥72 to ≤78%
Comment: Contact with metal may produce violent decomposition
Appearance (Color): White
Molecular Formula / Molecular Weight: C14H10O4 = 242.23

Physical State (20 deg.C): Solid
Storage Temperature: Refrigerated (0-10°C)
Condition to Avoid: Heat Sensitive
CAS RN: 94-36-0
Reaxys Registry Number: 984320
PubChem Substance ID: 87560344
Merck Index (14): 1116
MDL Number: MFCD00003071
Linear Formula: (C6H5CO)2O2
CAS Number: 94-36-0

Molecular Weight: 242.23
NACRES: NA.21
PubChem Substance ID: 57647701
UNSPSC Code: 12352100
EC Number: 202-327-6
MDL number: MFCD00003071
Beilstein/REAXYS Number: 984320
Assay: ≥98%
Form: solid
Physical state: solid

Color: white
Odor: bitter almond-like
Melting point/freezing point: Melting point/ range: 105 °C - lit.
Initial boiling point and boiling range: No data available
Flammability (solid, gas): No data available
Upper/lower flammability or explosive limits: No data available
Flash point: Not applicable
Autoignition temperature: 80 °C at 1,013 hPa
Decomposition temperature: No data available
pH: No data available

Viscosity: Viscosity, kinematic: No data available
Viscosity, dynamic: No data available
Water solubility: 0,35 g/l at 20 °C - OECD Test Guideline 105- slightly soluble
Partition coefficient: n-octanol/water: log Pow: 3,2 at 22 °C - Bioaccumulation is not expected.
Vapor pressure: < 1 hPa at 20 °C
Density: 1,33 g/cm3 at 25 °C
Relative density: 1,33 at 25 °C
Relative vapor density: 8,4
Particle: No data available
Explosive properties: Explosive when dry.
Oxidizing properties: Oxidizing potential
Relative vapor density: 8,4

Molecular Weight: 242.23 g/mol
XLogP3-AA: 3.5
Hydrogen Bond Donor Count: 0
Hydrogen Bond Acceptor Count: 4
Rotatable Bond Count: 5
Exact Mass: 242.05790880 Da
Monoisotopic Mass: 242.05790880 Da
Topological Polar Surface Area: 52.6 Å²
Heavy Atom Count: 18
Formal Charge: 0
Complexity: 258

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
Melting point: 105 °C (lit.)
Boiling point: 176°F
Density: 1.16 g/mL at 25 °C (lit.)

Bulk density: 500-600kg/m3
Vapor pressure: 0.009Pa at 25℃
Refractive index: 1.5430 (estimate)
Flash point: >230 °F
Storage temp.: 2-8°C
Solubility: 0.35mg/l
State of matter: powder
Color: White
Odor: odorless
Water solubility: Insoluble

Merck: 14,1116
BRN: 984320
Henry's Law Constant: 2.8×10 0 mol/(m 3 Pa) at 25℃, HSDB (2015)
Exposure limits: ACGIH:TLV-TWA 5 mg/m3
OSHA:PEL-TWA 5 mg/m3
NIOSH:REL-TWA 5 mg/m3
Stability: Strong oxidizer. Highly flammable.
Do not grind or subject to shock or friction.
Incompatible with reducing agents, acids, bases, alcohols, metals, organic materials.
Contact with combustible material, heating or friction may cause fire or explosion.

Cosmetic ingredients and their functions: OXIDISING
InChI: 1S/C14H10O4/c15-13(11-7-3-1-4-8-11)17-18-14(16)12-9-5-2-6-10-12/h1-10H
InChIKey: OMPJBNCRMGITSC-UHFFFAOYSA-N
SMILES: O(OC(=O)c2ccccc2)C(=O)c1ccccc1
LogP: 3.2 at 20℃
CAS Database: 94-36-0(CAS DataBase Reference)
IARC: 3 (Vol. 36, Sup 7, 71) 1999
NIST chemical information: Benzoyl peroxide (94-36-0)
EPA chemical information: Benzoyl peroxide (94-36-0)

FIRST AID MEASURES of PEROXIDE, DIBENZOYL:
-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 PEROXIDE, DIBENZOYL:
-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 PEROXIDE, DIBENZOYL:
-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 PEROXIDE, DIBENZOYL:
-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 PEROXIDE, DIBENZOYL:
-Conditions for safe storage, including any incompatibilities:
*Storage conditions:
Tightly closed.
Dry.

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