C4H6N2
82.1 g/mol
Pharmaceutical IntermediateDanger
4-Methylimidazole
CAS822-36-6EC212-497-3
Category
Pharmaceutical Intermediate
Compound Class
Heterocycle
Primary Use
Pharmaceutical Intermediate
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
Restricted or banned substances
Substances on this list are banned or restricted under the named regulation. This page is a compliance reference — verify your obligations under applicable law.
Relevant lists:California Proposition 65
CAS 822-36-6
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4-Fluorophenylhydrazine hydrochloride
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pharmaceutical intermediate
Safety Reference
Danger
H350May cause cancer
H302Harmful if swallowed
H311Toxic in contact with skin
H312Harmful in contact with skin
H314Causes severe skin burns and eye damage
H318Causes serious eye damage
H331Toxic if inhaled
H335May cause respiratory irritation
H351Suspected of causing cancer
H301Toxic if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H373May cause damage to organs through prolonged or repeated exposure
Regulatory Compliance1
- California Proposition 65USRegulation
Customs Tariff Classification
The international HS code for 4-Methylimidazole (CAS 822-36-6) is 2933.29.
HS code (international, 6-digit)
2933.29
EU CN code (8-digit)
2933 29 90
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
5-methyl-1H-imidazole
InChIKey
XLSZMDLNRCVEIJ-UHFFFAOYSA-N
SMILES
CC1=CN=CN1
Synonyms (19)
- 4MI
- 4MZ
- 1H-Imidazole, 4-methyl-
- 1H-Imidazole, 5-methyl-
- 4(5)-Methylimidazole
- 4(or 5)-Methylimidazole
- 4-Me-i
- 4-Methyl-1H-imidazole
- 4-Methylimidazole
- 4-Methylimidazole 4-
- 4-methyl-1(3)H-imidazole
- 4-methylimidazol
- 5-Methyl-1H-imidazole
- 5-Methylimidazole
- IMIDAZOLE, 4-METHYL-
- S-3-furyl ethanethioate
- imidazole, 4(5)-methyl-