C2H4OS
76.12 g/mol
Industrial ChemicalDanger
THIOACETIC ACID
CAS507-09-5EC208-063-8
Category
Industrial Chemical
Compound Class
Organic Acid
Primary Use
Reagent for thiol group introduction
Thioacetic acid is a clear, yellow liquid with a strong, unpleasant odor. It is used as a reagent for introducing thiol groups in molecular synthesis and as a component of Schiff's reagent.
Reagent for thiol group introduction in molecular synthesisComponent of Schiff's reagentFlavoring agent
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
ReferenceSame Category
Tert-butyl chloride
CAS507-20-0
Intermediate for fine chemical synthesis
ReferenceSame Category
Cyclopentyl chloroformate
CAS50715-28-1
chemical intermediate for synthesis
ReferenceSame Category
1,5-Dimethyl-2-pyrrolidinone
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Industrial solvent and intermediate
ReferenceSame Category
N-(3-Triethoxysilylpropyl)ethylenediamine
CAS5089-72-5
Silane coupling agent
Referencestereoisomer of
Potassium thioacetate
CAS10387-40-3
pharmaceutical intermediate
Safety Reference
Danger
H225Highly flammable liquid and vapour
H301Toxic if swallowed
H302Harmful if swallowed
H314Causes severe skin burns and eye damage
H317May cause an allergic skin reaction
H318Causes serious eye damage
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for THIOACETIC ACID (CAS 507-09-5) is 2930.90.
HS code (international, 6-digit)
2930.90
EU CN code (8-digit)
2930 90 95
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
ethanethioic S-acid
InChIKey
DUYAAUVXQSMXQP-UHFFFAOYSA-N
SMILES
CC(=O)S
Synonyms (25)
- Racecadotril EP impurity A
- Racecadotril impurity A, European Pharmacopoeia (EP)
- Acetic acid, thio-
- Acetyl mercaptan
- Acetyl-[acp]
- Acetyl-[acyl-carrier protein]
- Ethanethioic S-acid
- Ethanethioic acid
- Ethanethiolic acid
- Kyselina thiooctova
- Kyselina thiooctova [Czech]
- MONOTHIOACETIC ACID
- MeCOSH
- Methanecarbothiolic acid
- RACECADOTRIL IMPURITY A
- Racecadotril impurity A CRS
- THIOACETIC ACID
- Thiacetic acid
- Thioacetic S-acid
- Thiolacetic acid
- Thionoacetic acid
- USAF EK-P-737
- ethanethioic O-acid
- sulfonium methyl ketone
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