C5H3Cl2N
147.99 g/mol
Pharmaceutical IntermediateDanger
2,4-DICHLOROPYRIDINE
CAS26452-80-2EC247-717-7
Category
Pharmaceutical Intermediate
Compound Class
Heterocycle
Primary Use
Pharmaceutical Intermediate
2,4-Dichloropyridine is one of the six isomeric dichloropyridines, which are organic compounds consisting of a pyridine ring substituted with two chlorine atoms. It is used primarily as a pharmaceutical intermediate in the synthesis of active pharmaceutical ingredients.
pharmaceutical intermediatebuilding block in organic synthesis
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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ReferenceSame Category
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Safety Reference
Danger
H302Harmful if swallowed
H311Toxic in contact with skin
H315Causes skin irritation
H317May cause an allergic skin reaction
H318Causes serious eye damage
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for 2,4-DICHLOROPYRIDINE (CAS 26452-80-2) 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
2,4-dichloropyridine
InChIKey
TYPVHTOETJVYIV-UHFFFAOYSA-N
SMILES
C1=CN=C(C=C1Cl)Cl
Synonyms (5)
- 2,4-DICHLOROPYRIDINE
- 2,4-Dichloropyrdine
- 2,4-dichlorpyridine
- 2,4-dichoropyridine
- Pyridine, 2,4-dichloro-
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