4-Azabenzimidazole
[CAS# 273-21-2]

Identification

• Classification: Organic raw materials >> Heterocyclic compound >> Imidazoles
• Name: 4-Azabenzimidazole
• Synonyms: 1H-Imidazo[4,5-b]pyridine
• Molecular Formula: C₆H₅N₃
• Molecular Weight: 119.12
• CAS Registry Number: 273-21-2
• EC Number: 205-987-3

Properties

• Melting point: 147-150 ºC

Safety Data

• Safety Description: S24/25

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Acute toxicity	Acute Tox.	4	H302
Specific target organ toxicity - single exposure	STOT SE	3	H335
Skin irritation	Skin Irrit.	2	H315
Eye irritation	Eye Irrit.	2A	H319
Eye irritation	Eye Irrit.	2	H319