C6H8O3S
160.19 g/mol
Pharmaceutical IntermediateWarning
3-Thiophenecarboxylic acid, tetrahydro-4-oxo-, methyl ester
CAS2689-68-1EC220-256-9
Category
Pharmaceutical Intermediate
Compound Class
Ester
Primary Use
Pharmaceutical Intermediate
This compound is a sulfur-containing heterocyclic ester compound used as a pharmaceutical intermediate in chemical synthesis and manufacturing.
pharmaceutical intermediatelaboratory reagent for chemical 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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3-Carboxyphenylboronic acid pinacol ester
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ReferenceSame Category
Pyrazole-4-boronic acid pinacol ester
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Safety Reference
Warning
H302Harmful if swallowed
H312Harmful in contact with skin
H332Harmful if inhaled
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for 3-Thiophenecarboxylic acid, tetrahydro-4-oxo-, methyl ester (CAS 2689-68-1) 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
methyl 4-oxothiolane-3-carboxylate
InChIKey
LEAKUJFYXNILRB-UHFFFAOYSA-N
SMILES
COC(=O)C1CSCC1=O
Synonyms (25)
- 4-Carbomethoxy-3-thiophanone
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