Agent Name

Azobenzene

CAS Number

103-33-3

Formula

C12-H10-N2

Major Category

Nitrogen Compounds

Synonyms

1,2-Diphenyldiazene; Azobenzeen [Dutch]; Azobenzide; Azobenzol; Azobisbenzene; Azodibenzene; Azofume; Benzene, azobis-; Benzene, azodi; Benzeneazobenzene; Benzofume; Diazene, diphenyl-; Diazobenzene; Diphenyldiazene; Diphenyldiimide; [ChemIDplus]

Category

Other Aromatics (Nitrogen)

Description

Orange-red solid; [Merck Index] Orange-red or dark brown solid; [CAMEO] Brown or orange powder; [Alfa Aesar MSDS]

Sources/Uses

Used as an acaricide, fumigant, and chemical intermediate (dyes, rubber accelerators, and polymers); Formerly used as an intermediate for the production of benzidine, insecticides, and pyrazolone derivatives; [HSDB]

Comments

A skin, eye, and respiratory tract irritant; Oral administration causes liver damage in sub-chronic study of dogs and chronic study of rats; Methemoglobinemia followed by anemia observed in sub-chronic studies of mice and rats; Emergency treatment: "Aniline"; Aniline can induce methemoglobinemia, secondary hemolytic anemia, and liver damage. [HSDB] Sensitive to air and light; Dust mixtures with air may be explosive; A skin, eye, and respiratory tract irritant; Chronic exposure may cause effects to liver, kidneys, nervous system, and bone marrow; Can be absorbed through skin; [CAMEO] Evidence for carcinogenicity in rats but not in mice; [NTP] An irritant; [Alfa Aesar MSDS]

Exposure Assessment
Vapor Pressure

0.000361 mm Hg

Adverse Effects
Hepatotoxin

Hepatotoxin, Secondary

Methemoglobinemia

Methemoglobinemia, Secondary

IARC Carcinogen

Not Classifiable

Links to Other NLM Databases
Health Studies

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Toxicity Information

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Chemical Information

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Processes

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