C5H4ClN
113.54 g/mol
Pharmaceutical IntermediateDanger
2-CHLOROPYRIDINE
CAS109-09-1EC203-646-3
Category
Pharmaceutical Intermediate
Compound Class
Heterocycle
Primary Use
Pharmaceutical Intermediate
2-Chloropyridine is a colorless oily liquid that serves as an intermediate in the production of various chemicals. It is toxic if ingested or absorbed through the skin and is primarily used in the synthesis of pharmaceuticals and agrochemicals.
Production of pyrithione (a fungicide)Manufacture of antihistaminesSynthesis of insecticides such as pyripropoxyfen
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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Safety Reference
Danger
H301Toxic if swallowed
H302Harmful if swallowed
H310Fatal in contact with skin
H315Causes skin irritation
H318Causes serious eye damage
H319Causes serious eye irritation
H330Fatal if inhaled
H331Toxic if inhaled
H335May cause respiratory irritation
H373May cause damage to organs through prolonged or repeated exposure
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects
H227
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for 2-CHLOROPYRIDINE (CAS 109-09-1) 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
2-chloropyridine
InChIKey
OKDGRDCXVWSXDC-UHFFFAOYSA-N
SMILES
C1=CC=NC(=C1)Cl
Synonyms (14)
- 2-CHLOROPYRIDINE
- 2-Chloropyridine-13C5
- 2-chloropyridin
- 2-chlorpyridine
- CHLOROPYRIDINE, 2-
- Pyridine, 2-chloro-
- Pyridine, chloro-
- Trazodone Impurity 15
- a-chloropyridine
- alpha-Chloropyridine
- chloro-pyridine
- o-Chloropyridine
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