Description

Bis(4-methylbenzoyl) peroxide (CAS No. 895-85-2) is a high-purity organic peroxide widely utilized as a radical initiator in polymerization reactions. With the molecular formula C₁₆H₁₄O₄ and IUPAC name (4-methylbenzoyl) 4-methylbenzenecarboperoxoate, this compound is characterized by its stability under controlled conditions and its ability to decompose thermally to generate free radicals. It is commonly employed in the synthesis of polymers, resins, and specialty chemicals, offering researchers precise control over reaction kinetics. Available in crystalline or powder form, our product is rigorously tested for purity and consistency, ensuring optimal performance in industrial and laboratory settings. Proper storage in a cool, dry environment is recommended to maintain its efficacy.

Properties

• CAS Number: 895-85-2
• Complexity: 302
• IUPAC Name: (4-methylbenzoyl) 4-methylbenzenecarboperoxoate
• InChI: InChI=1S/C16H14O4/c1-11-3-7-13(8-4-11)15(17)19-20-16(18)14-9-5-12(2)6-10-14/h3-10H,1-2H3
• InChI Key: AGKBXKFWMQLFGZ-UHFFFAOYSA-N
• Exact Mass: 270.08920892
• Molecular Formula: C16H14O4
• Molecular Weight: 270.28
• SMILES: CC1=CC=C(C=C1)C(=O)OOC(=O)C2=CC=C(C=C2)C
• Topological: 52.6
• Monoisotopic Mass: 270.08920892
• Synonyms: Bis(4-methylbenzoyl)peroxide, p-Toluoyl peroxide, Peroxide, bis(4-methylbenzoyl), 895-85-2, bis(4-methylbenzoyl) peroxide, 4-methylbenzoyl peroxide, YCC4HA3UHV, p-methylbenzoyl peroxide, di(p-methylbenzoyl) peroxide, bis(p-methylbenzoyl) peroxide, DTXSID6074332, EC 407-950-9, P,P’-DIMETHYLBENZOYL PEROXID, P,P’-DIMETHYLDIBENZOYL PEROXIDE, DTXCID6048678, 407-950-9, (4-methylbenzoyl) 4-methylbenzenecarboperoxoate, UNII-YCC4HA3UHV, p-Toloylperoxyd, SCHEMBL64626, AGKBXKFWMQLFGZ-UHFFFAOYSA-N, NS00004825, Toluene-4-carboperoxoic acid 4-methyl-benzoyl ester, Q27294449

Application

Bis(4-methylbenzoyl) peroxide serves as a highly efficient radical initiator in the polymerization of vinyl monomers, such as styrene and acrylics. It is particularly valued in the production of thermoset plastics and elastomers due to its controlled decomposition rate. Additionally, this compound finds use in crosslinking applications for silicone rubber and other specialty polymers. Its reliability and consistency make it a preferred choice for both industrial-scale manufacturing and academic research.

Safety and Hazards

GHS Hazard Statements

• H241: Heating may cause a fire or explosion [Danger Self-reactive substances and mixtures; Organic peroxides]
• H410: Very toxic to aquatic life with long lasting effects [Warning Hazardous to the aquatic environment, long-term hazard]

Precautionary Statements

• P210, P234, P235, P240, P273, P280, P370+P380+P375[+P378], P391, P403, P410, P411, P420, and P501

Hazard Classes and Categories

• Org. Perox. B (23.5%)
• Org. Perox. D (76.5%)
• Aquatic Acute 1 (100%)
• Aquatic Chronic 1 (100%)

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.