5-Methoxy-2-mercaptobenzimidazole, 99+%

Catalog No.	Quantity	Packaging
AC275370250	25 g	Glass bottle
AC275370050	5 g	Glass bottle

Catalog No. AC275370250 Supplier Thermo Scientific Chemicals Supplier No. 275370250

Description

CAS: 37052-78-1 | C8H8N2OS | 180.23 g/mol

This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Specifications

Chemical Identifiers

• CAS: 37052-78-1
• Molecular Formula: C8H8N2OS
• Molecular Weight (g/mol): 180.23
• MDL Number: MFCD00134581
• InChI Key: KOFBRZWVWJCLGM-UHFFFAOYSA-N
• Synonym: 5-methoxy-2-mercaptobenzimidazole, 2-mercapto-5-methoxybenzimidazole, 5-methoxy-1h-benzo d imidazole-2-thiol, 5-methoxy-2-benzimidazolethiol, 5-methoxy-1h-benzimidazole-2-thiol, 5-methoxy-1h-1,3-benzodiazole-2-thiol, 2-mercapto-5-methoxy-1h-benzimidazole, 5-methoxy-1h-benzoimidazole-2-thiol, 1,3-dihydro-5-methoxy-2h-benzimidazole-2-thione, 5-methoxybenzimidazole-2-thiol
• PubChem CID: 665603
• IUPAC Name: 5-methoxy-1,3-dihydrobenzimidazole-2-thione
• SMILES: COC1=CC=C2NC(=S)NC2=C1

• CAS Min %: 99.0
• Absorbance: (1% soln. in methanol) (1 cm cell) no other absorption observed from 360 to 600nm, (1% soln. in methanol) (1 cm cell) no other absorption observed from 360 to 600nm at 0nm, 0.4 max. at 360nm
• CAS Max %: 100.0
• Melting Point: 255°C to 262°C
• Color: Brown-Yellow to White
• Loss on Drying: 0.5% max.
• Infrared Spectrum: Authentic
• Assay Percent Range: 99% min. (HPLC)
• Packaging: Glass bottle
• Quantity: 25 g
• Solubility Information: Solubility in water: insoluble. Other solubilities: soluble in sodium hydroxide solution
• Formula Weight: 180.23
• Percent Purity: 99+%
• Physical Form: Powder
• Chemical Name or Material: 5-Methoxy-2-mercaptobenzimidazole, 99+%

Safety and Handling

Hazard Category	GHS Signal Word: Warning
Hazard Statement	GHS H Statement Causes skin irritation. May cause an allergic skin reaction. Causes serious eye irritation. Harmful to aquatic life with long lasting effects.
Precautionary Statement	GHS P Statement IF ON SKIN: Wash with plenty of soap and water. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses,if present and easy to do. Continue rinsing. Wear protective gloves/protective cloth
EINECSNumber	253-326-2

SDS

RUO – Research Use Only