Agent Name

2-Benzimidazolethiol

CAS Number

583-39-1

Formula

C7-H6-N2-S

Major Category

Nitrogen Compounds

Synonyms

Benzimidazoline-2-thione; 1H-Benzimidazole-2-thiol; 2-Benzimidazolinethione; 2-Benzimidazolinthion [Czech]; 2-Mercaptobenzimidazole; 2-Mercaptobenzoimidazole; 2-Merkaptobenzimidazol [Czech]; 2-Thiobenzimidazole; 2-Thiol benzimidazole; Antiegene MB; Antigen MB; Antigene MB; Antioxidant MB [Czech]; AOMB; ASM MB; Benzimidazolethiol; Mercaptobenzimidazole; Mercaptobenzoimidazole; Merkaptobenzimidazol [Czech]; o-Phenylenethiourea; Permanax 21; 2H-Benzimidazole-2-thione, 1,3-dihydro-; Benzimidazole-2-thiol; [ChemIDplus] Antage MB; Antioxidant MB/K; AO-MB; 2-Benzimidazolethione; 2,3-Dihydro-1H-benzimidazole-2-thione; 1,3-Dihydro-2H-benzimidazole-2-thione; G 580; MB; MB/K; 2-Mercapto-1H-benzimidazole; Nocrac MB; Nonflex MB; Sumilizer MB; Vulkanox MB; Vulkanox MBI; [CAMEO] UN2811

Category

Imidazoles

Description

Glistening solid; [Merck Index] White to yellow or cream solid with a mild odor; [CAMEO] Beige crystalline solid; [Sigma-Aldrich MSDS]

Sources/Uses

"Purine synthesis antimetabolite." [ChemIDplus] Used as an intermediate, in rubber product manufacturing, and electroplating, [ExPub: ECHA REACH Registrations]

Comments

A mild skin and eye irritant; Causes somnolence, ataxia, coma, changes in liver weight, and evidence of thyroid hypofunction in acute oral studies of rats; Causes changes in thymus and thyroid weights and changes in erythrocyte count in 13-week intermittent inhalation studies of rats; [RTECS] A skin and strong eye irritant; Toxic by ingestion; Harmful by inhalation and skin absorption; [Sigma-Aldrich MSDS] See "Benzimidazole."

Exposure Assessment
Vapor Pressure

4.66E-6 mm Hg

Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Toxic solid, organic, n.o.s."

Links to Other NLM Databases
Toxicity Information

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Chemical Information

Search ChemIDplus

Related Information in HazMap
Processes

Industrial Processes with risk of exposure: