C6H5ClOS
160.62 g/mol
Pharmaceutical IntermediateDanger
2-ACETYL-4-CHLOROTHIOPHENE
CAS34730-20-6
Category
Pharmaceutical Intermediate
Compound Class
Heterocycle
Primary Use
Pharmaceutical Intermediate
2-Acetyl-4-chlorothiophene is a chemical compound used as a pharmaceutical intermediate in the manufacturing of active pharmaceutical ingredients. It serves as a building block in the synthesis of certain medications.
pharmaceutical intermediatesynthesis of avatrombopag
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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pharmaceutical intermediate
ReferenceSame Category
6-Bromoisoquinoline
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pharmaceutical intermediate
ReferenceSame Category
4-Hydroxy-3-quinolinecarboxylic acid
CAS34785-11-0
pharmaceutical intermediate
Safety Reference
Danger
H301Toxic if swallowed
H302Harmful if swallowed
H312Harmful in contact with skin
H332Harmful if inhaled
Customs Tariff Classification
The international HS code for 2-ACETYL-4-CHLOROTHIOPHENE (CAS 34730-20-6) is 2934.99.
HS code (international, 6-digit)
2934.99
EU CN code (8-digit)
2934 99 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
1-(4-chlorothiophen-2-yl)ethanone
InChIKey
FKESGQASARHBDC-UHFFFAOYSA-N
SMILES
CC(=O)C1=CC(=CS1)Cl
Synonyms (9)
- 1-(4-Chlor-2-thienyl)-ethanon
- 2-ACETYL-4-CHLOROTHIOPHENE
- 4-chloro-2-acetylthiophene
- Avatrombopag Impurity 21
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