C7H9N
107.15 g/mol
Pharmaceutical IntermediateDanger
3,4-Lutidine
CAS583-58-4EC209-511-5
Category
Pharmaceutical Intermediate
Compound Class
Heterocycle
Primary Use
Pharmaceutical Intermediate
3,4-Lutidine is a methylpyridine derivative used as a building block in the synthesis of active pharmaceutical ingredients. It is a colorless to light yellow liquid with a characteristic pyridine-like odor.
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.
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Related Compounds
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Safety Reference
Danger
H226Flammable liquid and vapour
H301Toxic if swallowed
H311Toxic in contact with skin
H331Toxic if inhaled
H302Harmful if swallowed
H310Fatal in contact with skin
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for 3,4-Lutidine (CAS 583-58-4) is 2933.39.
HS code (international, 6-digit)
2933.39
EU CN code (8-digit)
2933 39 99
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
3,4-dimethylpyridine
InChIKey
NURQLCJSMXZBPC-UHFFFAOYSA-N
SMILES
CC1=C(C=NC=C1)C
Synonyms (7)
- 3,4-DIMETHYLPYRIDINE
- 3,4-Lutidene
- 3,4-Lutidine
- 3,4Dimethylpyridin
- 3,4Dimetilpiridina
- Pyridine, 3,4-dimethyl-
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