1082. 2-Benzimidazolethiol

Nomenclature

CAS number: 583-39-1
1,3-Dihydro-2H-benzimidazole-2-thione; 2-mercaptobenzimidazole.
C7H6N2S; mol wt 150.20.
C 55.98%, H 4.03%, N 18.65%, S 21.35%.

Description and references

Prepn from o-phenylenediamine and potassium ethyl xanthate: Van Allan, Deacon, Org. Synth. coll. vol. IV, 569 (1963).

Chemical structure

Properties

Glistening platelets from 95% ethanol, mp 303-304°. Slightly sol in water; sol in methanol, ethanol.