Agent Name

3-Amino-4-hydroxybenzenesulfonic acid

CAS Number

98-37-3

Formula

C6-H7-N-O4-S

Major Category

Nitrogen Compounds

Synonyms

2-Amino-4-sulfophenol; 2-Aminophenol-4-sulfonic acid; 2-Hydroxy-5-sulfoaniline; 4-Hydroxy-3-aminobenzenesulfonic acid; 4-Hydroxymetanilic acid; o-Aminophenol-p-sulfonic acid; 2-Amino-1-phenol-4-sulfonic acid; 3-Amino-4-hydroxybenzenesulphonic acid; Benzenesulfonic acid, 3-amino-4-hydroxy-; Metanilic acid, 4-hydroxy- (8CI); [ChemIDplus] 1-Amino-2-hydroxy-5-benzenesulfonic acid; 3-Amino-4-hydroxy benzenesulfonic acid; 2-Aminophenol-4-sulphonic acid; ortho-Amino-phenol-para-sulfonic acid; [CAMEO] UN2585

Category

Aminobenzenesulfonic Acids

Description

Brown solid; [CAMEO] Dark brown crystalline solid; [Sigma-Aldrich MSDS]

Sources/Uses

Used as a dye intermediate; [NTP] Used to make dyes and pharmaceuticals; [ExPub: ECHA REACH Registrations]

Comments

An irritant; [NTP] Causes burns; Inhalation may cause corrosive injuries to upper respiratory tract and lungs; [Sigma-Aldrich MSDS] See "Sulfanilic acid."

Exposure Assessment
Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Aryl sulfonic acids, solid, with not mor than 5% free Sulfuric acid."

Adverse Effects
Toxic Pneumonitis

Yes

Dermatotoxin

Skin Burns

Links to Other NLM Databases
Toxicity Information

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Chemical Information

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Other Information

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