Agent Name

Dithizone

CAS Number

60-10-6

Formula

C13-H12-N4-S

Major Category

Other Classes

Synonyms

(Phenylazo)thioformic acid, 2-phenylhydrazide; 1,5-Diphenyl-3-mercaptoformazan; 3-Formazanthiol, 1,5-diphenyl-; Carbazone, diphenylthio-; Diazenecarbohydrazonothioic acid, N,2-diphenyl-; Diphenylthiocarbazone; Dithizon; Ditizon; Semicarbazide, 1-phenyl-4-(phenylimino)-3-thio-; Thioformic acid, phenylazo-, phenylhydrazide; 1,5-Diphenyl-3-thiocarbazone; Diazenecarbothioic acid, 2-phenyl-, 2-phenylhydrazide; Diazenecarbothioic acid, phenyl-, 2-phenylhydrazide; Formic acid, (phenylazo)thio-, 2-phenylhydrazide; [ChemIDplus] Phenyldiazenecarbothioic acid 2-phenylhydrazide; [Merck Index]

Category

Thiourea Compounds

Description

Bluish-black solid; [Merck Index] Purple odorless crystals; [Alfa Aesar MSDS]

Sources/Uses

Used as an indicator for minute amounts of lead; [Merck Index] Used as a chelating agent for heavy metal poisoning; [ChemIDplus]

Comments

Causes changes in recordings from specific areas of the CNS in intraperitoneal lethal-dose studies of mice; [RTECS] Glycosuria and eye injury observed in animal studies; [Merck Index] A skin and strong eye irritant; [Alfa Aesar MSDS] See "1,3-Diamino-2-thiourea."

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