Benzoyl peroxide

Agent Name
Benzoyl peroxide
Alternative Name
Dibenzoyl peroxide
CAS Number
Major Category
Other Classes
Benzoyl peroxide formula graphical representation
Dibenzoyl peroxide; Abcat 40; Acetoxyl; Acne-Aid Cream; Acnegel; Akneroxid 5; Akneroxide L; Aksil 5; Asidopan; Aztec BPO; B 75W; BPO; BZF-60; Benbel C; Benox 50; Benoxyl; Benoxyl (5&10) Lotion; Benzac; Benzac W; Benzagel; Benzagel 10; Benzaknen; Benzashave; Benzoic acid, peroxide; Benzol peroxide; Benzoperoxide; Benzoyl peroxide; Benzoyl superoxide; Benzoylperoxid [German]; Benzoylperoxyde [Dutch]; Brevoxyl; Cadat BPO; Cadox 40E; Cadox B; Cadox B 40E; Cadox B 50P; Cadox B 70W; Cadox B-CH 50; Cadox BS; Chaloxyd BP 50FT; Clear By Design; Clearasil Antibacterial Acne Lotion; Clearasil BP Acne Treatment Cream; Debroxide; Desanden; Desquam E; Desquam X; Dibenzoyl peroxide; Dibenzoylperoxid [German]; Dibenzoylperoxyde [Dutch]; Diphenylglyoxal peroxide; Dry and Clear; Duresthin 5; Eloxyl; Epi Clear Antiseptic Lotion; Epi-Clear; Fostex; G 20; Garox; Incidol; Loroxide; Lucidol; Lucidol (peroxide); Lucidol 50P; Lucidol B 50; Lucidol G 20; Lucidol KL 50; Lucidol-70; Luperco AA; Luperco AST; Luperox FL; Mytolac; Nayper B and BO; Nayper bo; Norox bzp-250; Norox bzp-C-35; Novadelox; Oxy-10; Oxy-10 Cover; Oxy-5; Oxylite; PanOxyl; Perossido di benzoile [Italian]; Peroxide, dibenzoyl; Peroxyde de benzoyle [French]; Persa-Gel; Persadox; Quinolor compound; Resdan Akne; Stri-dex B.P.; Superox 744; Theraderm; Topex; Vanoxide; Xerac; epi-Cle; [ChemIDplus] UN2088
Peroxides, Organic
Colorless to white crystals or a granular powder with a faint, benzaldehyde-like odor; [NIOSH]
Used as a catalyst in polymer production, e.g., acrylates, and an oxidizer to bleach flour and other foods; [ACGIH]
Benzoyl peroxide is a skin irritant and infrequent sensitizer. It may cause allergic contact dermatitis in dentists using acrylate cements and in bakers handling bleached flour. [Marks, p. 188] If left on clothes, can cause reddening of the skin; [CHRIS] A skin, eye, and respiratory tract irritant; [ICSC]
Biomedical References

Exposure Assessment

Skin Designation (ACGIH)
Insufficient data
5 mg/m3
5 mg/m3
5 mg/m3, inhalable fraction
1500 mg/m3
Excerpts from Documentation for IDLHs
Human data: Concentrations of 12 mg/m3 and higher have resulted in pronounced irritation of the nose and throat [Moskowitz and Grabois 1950].
Vapor Pressure
7.06E-05 mm Hg
Lethal Concentration
LC50 (mice) = 7,000 mg/m3/4H
Explanatory Notes
Flash point = 176 deg F;
Half Life
No reports found; [TDR, p. 174]
Reference Link #2
may ignite at ambient temp

Adverse Effects

Skin Sensitizer
IARC Carcinogen
Not classifiable
ACGIH Carcinogen
Not Classifiable

Diseases, Processes, and Activities Linked to This Agent


Occupational diseases associated with exposure to this agent:


Industrial Processes with risk of exposure:


Activities with risk of exposure: