B

Benzoyl peroxide

IUPAC: benzoyl benzenecarboperoxoate

C14H10O4 Laboratory Reagents CAS 94-36-0
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Quick Reference
Formula / NotationC14H10O4
CAS Number94-36-0
Molecular Weight242.23
Melting Point217 to 221 °F (decomposes) (NTP, 1992)
Boiling PointDecomposes explosively (NTP, 1992)
Density1.334 at 59 °F (USCG, 1999) - Denser than water; will sink
Solubilityless than 1 mg/mL at 79 °F (NTP, 1992)
AppearanceBenzoyl peroxide appears as odorless white powder or granules. Sinks in water. (USCG, 1999)
Also Known Asbenzoyl benzenecarboperoxoate; 94-36-0; Dibenzoyl peroxide; Benzoyl superoxide; Peroxide, dibenzoyl; Benzoperoxide; Lucidol; Panoxyl; Acetoxyl; Persadox
CategoryLaboratory Reagents

What is Benzoyl peroxide?

Benzoyl peroxide (C14H10O4) is a laboratory reagent that appears as Benzoyl peroxide appears as odorless white powder or granules. Sinks in water. (USCG, 1999). It has a molecular weight of 242.23 g/mol. Its IUPAC name is benzoyl benzenecarboperoxoate. Boiling point: Decomposes explosively (NTP, 1992). Melting point: 217 to 221 °F (decomposes) (NTP, 1992).

Formula & Notation

C14H10O4

IUPAC Name: benzoyl benzenecarboperoxoate

Other Names / Synonyms: benzoyl benzenecarboperoxoate; 94-36-0; Dibenzoyl peroxide; Benzoyl superoxide; Peroxide, dibenzoyl; Benzoperoxide; Lucidol; Panoxyl; Acetoxyl; Persadox

Properties & Characteristics

Appearance: Benzoyl peroxide appears as odorless white powder or granules. Sinks in water. (USCG, 1999). Molecular formula: C14H10O4. Molecular weight: 242.23 g/mol. Boiling point: Decomposes explosively (NTP, 1992). Melting point: 217 to 221 °F (decomposes) (NTP, 1992). Density: 1.334 at 59 °F (USCG, 1999) - Denser than water; will sink. Solubility: less than 1 mg/mL at 79 °F (NTP, 1992). Vapor pressure: less than 0.1 mmHg at 68 °F (NTP, 1992). LogP: 3.5.

Physical Data

PropertyValue
Melting Point217 to 221 °F (decomposes) (NTP, 1992)
Boiling PointDecomposes explosively (NTP, 1992)
Density1.334 at 59 °F (USCG, 1999) - Denser than water; will sink
Molecular Weight242.23
Solubilityless than 1 mg/mL at 79 °F (NTP, 1992)
AppearanceBenzoyl peroxide appears as odorless white powder or granules. Sinks in water. (USCG, 1999)

Uses & Applications

Used as a synthetic reagent for transformations including oxidation, reduction, coupling, or functional group manipulation.

Safety Information

Hazardous reagent. May be toxic, corrosive, flammable, or reactive. Use in fume hood with full PPE. Consult SDS before use.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term Benzoyl peroxide
Formula C14H10O4
CAS Number 94-36-0
Molecular Weight 242.23
Synonyms benzoyl benzenecarboperoxoate; 94-36-0; Dibenzoyl peroxide; Benzoyl superoxide; Peroxide, dibenzoyl; Benzoperoxide; Lucidol; Panoxyl; Acetoxyl; Persadox

Frequently Asked Questions

Benzoyl peroxide (C14H10O4) is a laboratory reagent that appears as Benzoyl peroxide appears as odorless white powder or granules. Sinks in water. (USCG, 1999). It has a molecular weight of 242.23 g/mol. Its IUPAC name is benzoyl benzenecarboperoxoate. Boiling point: Decomposes explosively (NTP, 1992). Melting point: 217 to 221 °F (decomposes) (NTP, 1992).

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Editorial standards: Chemical data is sourced from peer-reviewed literature, CAS Registry, NIST WebBook, and PubChem. Safety information reflects guidance from OSHA, ECHA, and IAEA. For educational purposes only — always consult official SDS documentation and qualified professionals before handling chemicals.