2-Mercaptobenzimidazole

Catalog Number	ACM583391-2
CAS Number	583-39-1
Structure
Description	2-mercaptobenzimidazole appears as white to yellow crystals or cream colored powder. Slight odor. (NTP, 1992)
Synonyms	1H-Benzoimidazole-2-thiol
IUPAC Name	1,3-Dihydrobenzimidazole-2-thione
Molecular Weight	150.2
Molecular Formula	C7H6N2S
Canonical SMILES	C1=CC=C2C(=C1)NC(=S)N2
InChI	InChI=1S/C7H6N2S/c10-7-8-5-3-1-2-4-6(5)9-7/h1-4H,(H2,8,9,10)
InChI Key	YHMYGUUIMTVXNW-UHFFFAOYSA-N
Boiling Point	270.6±23.0 °C
Melting Point	300-304 °C
Purity	98%+
Density	1.42 (NTP, 1992)
Solubility	Slightly soluble in hot water
Appearance	Powder
Application	2-Mercaptobenzimidazole serves multiple purposes across various industries due to its versatile properties. Primarily, it acts as an antidegradant, offering protection to rubber against oxidative damage. In the pharmaceutical sector, it functions as an important intermediate in the synthesis of rabeprazole and is incorporated into certain anti-leprosy medications. Additionally, its utility extends to the field of electrochemistry, where it acts as a copper plating brightener and a corrosion inhibitor capable of safeguarding metals like copper and mild steel. Furthermore, it is effective in removing mercury (II) from aqueous solutions, making it valuable for treating wastewater in the chlor-alkali industry.
Storage	2-8 °C
EC Number	209-502-6;604-756-8
Exact Mass	150.02516937
Hydrogen-Bond Acceptor Count	1
Hydrogen-Bond Donor Count	2
Monoisotopic Mass	150.02516937
Rotatable-Bond Count	0
Topological Polar Surface Area	56.2 Ų

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