Agent Name

1,2,4-Trihydroxy-9,10-anthracenedione

Alternative Name

Purpurin

CAS Number

81-54-9

Formula

C14-H8-O5

Major Category

Dyes

Synonyms

Purpurin; 1,2,4-Trihydroxy-9,10-anthraquinone; 1,2,4-Trihydroxyanthrachinon [Czech]; 1,2,4-Trihydroxyanthraquinone; 9,10-Anthracenedione, 1,2,4-trihydroxy-; C.I. 1037; C.I. 58205; C.I. 75410; Hydroxylizaric acid; Purpurin, madder root; Purpurine; Smoke Brown G; Verantin; 1,2,4-Trihydroxyanthraquinone; 9,10-Anthracenedione, 1,2,4-trihydroxy-; Anthraquinone, 1,2,4-trihydroxy-; [ChemIDplus]

Category

Anthraquinone Dyes

Description

Orange or red solid; [Merck Index] Dark brown powder; [Aldrich MSDS]

Sources/Uses

Formed during storage of the madder root; Forms "lakes" with some metal salts; Used as a fast dye for printing cotton, to make acid and chrome dyes, as a reagent for detection of boron, for histological detection of insoluble calcium salts, and as a nuclear stain; [Merck Index]

Comments

A mild eye irritant; Intraperitoneal LD50 (mouse) > 500 mg/kg; [RTECS] An irritant; Targets the liver, kidney, CNS, cardiovascular system, and blood; [Aldrich MSDS] See "1,4-Dihydroxy-9,10-anthracenedione."

Exposure Assessment
Vapor Pressure

7.52E-11 mm Hg

Links to Other NLM Databases
Toxicity Information

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Chemical Information

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Related Information in HazMap
Processes

Industrial Processes with risk of exposure: