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M3205

2-Mercaptobenzimidazole

98%

Synonym(s):

1,3-Dihydro-2H-benzimidazole-2-thione, 2-Benzimidazolethiol

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About This Item

Empirical Formula (Hill Notation):
C7H6N2S
CAS Number:
583-39-1
Molecular Weight:
150.20
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
24896821
EC Number:
209-502-6
Beilstein/REAXYS Number:
119867
MDL number:
MFCD00466107
Assay:
98%
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Quality Segment

assay

98%

mp

300-304 °C (lit.)

SMILES string

S=C1Nc2ccccc2N1

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

General description

2-Mercaptobenzimidazole is a good corrosion inhibitor as it reduces the corrosion rate of metals.

Application

2-Mercaptobenzimidazole can be used:
  • To prepare 2-benzimidazolylthioacetophenones by reacting with aromatic ketones, which is a key intermediate for the synthesis of thiazolo[3,2-a]benzimidazoles.
  • To synthesize S-arylated 2-mercapto-benzimidazoles via S-arylation with substituted aryl iodides using CuI and 1,10-phenanthroline.

Pictograms

Skull and crossbonesHealth hazard
GHS06,GHS08

Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Oral - Aquatic Chronic 3 - Skin Sens. 1A - STOT RE 2

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 2

PPE (personal protective equipment)

dust mask type N95 (US), Eyeshields, Faceshields, Gloves

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