Agent Name

4-Hydroxyazobenzene

CAS Number

1689-82-3

Formula

C12-H10-N2-O

Major Category

Dyes

Synonyms

4-(Phenylazo)phenol; 4-Phenylazophenol; Atul Brilliant Oil Yellow G; Azobenzene, 4-hydroxy-; Brasilazina Oil Yellow O; C.I. 11800; C.I. Solvent Yellow 7; CI 11800; CI Solvent Yellow 7; Organol Yellow AP; Phenol, 4-(phenylazo)-; Phenol, p-(phenylazo)-; Pirocard Green 491; Solvent Yellow 7; Zlut rozpoustedlova 7 [Czech]; p-Benzeneazophenol; p-Hydroxyazobenzene; p-Phenylazophenol; [ChemIDplus]

Category

Azo Dyes

Description

Yellow or orange solid; [HSDB] Deep yellow powder; [MSDSonline]

Sources/Uses

Used as a pigment in varnishes, fats, waxes, resins, and soaps; Used to make dyes; [HSDB]

Comments

Intraperitoneal LD50 (mouse) = 75 mg/kg; [HSDB] An irritant; May cause injury to skin and eyes; [MSDSonline]

Exposure Assessment
Vapor Pressure

2.31E-7 mm Hg

Adverse Effects
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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Related Information in HazMap
Processes

Industrial Processes with risk of exposure: