Agent Name

1,2-Diamino-4-nitrobenzene

CAS Number

99-56-9

Formula

C6-H7-N3-O2

Major Category

Nitrogen Compounds

Synonyms

1,2-Benzenediamine, 4-nitro-; 2-Amino-4-nitroaniline; 3,4-Diaminonitrobenzene; 4-N-o-PDA; 4-NO; 4-Nitro-1,2-benzenediamine; 4-Nitro-1,2-diaminobenzene; 4-Nitro-1,2-fenylendiamin [Czech]; 4-Nitro-1,2-phenylenediamine; 4-Nitro-o-phenylene-diamine; 4-Nitro-para-phenylenediamine; 4-Nitrophenylenediamine; 4-NOP; 4-NOPD; 4NDB; C.I. 76020; CI 76020; p-Nitro-o-phenylenediamine; [ChemIDplus]

Category

Nitroanilines

Description

Dark red solid; [Merck Index] Brown or dark red crystalline powder; [MSDSonline]

Sources/Uses

Used as a dye in semi-permanent and permanent hair coloring products; as a colorimetric reagent for determination of ascorbic and dehydroascorbic acids in foods; as a chelating agent for the gas chromatographic determination of selenium in biological materials; [HSDB] Reagent for alpha-keto acids; [Merck Index]

Comments

May cause skin sensitization; [ICSC] A skin, eye, mucous membrane, and respiratory tract irritant; Highly toxic by ingestion and inhalation; [CAMEO] An irritant; May cause skin sensitization; [MSDSonline]

Exposure Assessment
Vapor Pressure

0.000109 mm Hg

Adverse Effects
Skin Sensitizer

Yes

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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Diseases

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Processes

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