C4H6Cl2O
140.99 g/mol
Pharmaceutical IntermediateDanger
4-Chlorobutyryl chloride
CAS4635-59-0EC225-059-1
Category
Pharmaceutical Intermediate
Compound Class
Halocarbon
Primary Use
Pharmaceutical Intermediate
4-Chlorobutyryl chloride is a chemical compound used primarily as a pharmaceutical intermediate in the manufacturing of active pharmaceutical ingredients. It features a structure with two halogen atoms, contributing to its reactivity 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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Safety Reference
Danger
H290May be corrosive to metals
H302Harmful if swallowed
H314Causes severe skin burns and eye damage
H330Fatal if inhaled
Customs Tariff Classification
The international HS code for 4-Chlorobutyryl chloride (CAS 4635-59-0) is 2915.90.
HS code (international, 6-digit)
2915.90
EU CN code (8-digit)
2915 90 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
4-chlorobutanoyl chloride
InChIKey
CDIIZULDSLKBKV-UHFFFAOYSA-N
SMILES
C(CC(=O)Cl)CCl
Synonyms (21)
- 4-Chlorobutanoyl chloride
- 4-Chlorobutyl chloride
- 4-Chlorobutyric acid chloride
- 4-Chlorobutyroyl chloride
- 4-Chlorobutyryl chloride
- 4-chlorobutryl chloride
- 4-chlorobutyric chloride
- 4-chlorobutyryl choride
- ?-Chlorobutyroyl chloride
- Butanoyl chloride, 4-chloro-
- Butanoyl chloride, chloro-
- Butyryl chloride, 4-chloro-
- chlorobutanoyl chloride
- chlorobutyrylchloride
- gamma-Chlorobutyroyl chloride
- gamma-Chlorobutyryl chloride
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