C5H4OS
112.15 g/mol
Industrial ChemicalWarning
3-Thiophenecarboxaldehyde
CAS498-62-4EC207-865-5
Category
Industrial Chemical
Compound Class
Heterocycle
Primary Use
intermediate
3-Thiophenecarboxaldehyde is an organic compound containing a thiophene ring with an aldehyde substituent. It is commonly used as an intermediate in chemical synthesis.
intermediate in organic synthesisbuilding block for specialty chemicals
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
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CAS499-06-9
chemical intermediate for synthesis
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Chemical intermediate for polymer synthesis
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Sodium 3-fluorobenzoate
CAS499-57-0
Fluorinated benzoate salt intermediate
ReferenceSame Category
Formaldehyde
CAS50-00-0
disinfectant and preservative
Safety Reference
Warning
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for 3-Thiophenecarboxaldehyde (CAS 498-62-4) 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
thiophene-3-carbaldehyde
InChIKey
RBIGKSZIQCTIJF-UHFFFAOYSA-N
SMILES
C1=CSC=C1C=O
Synonyms (15)
- 3-Carboxaldehyde-thiophene
- 3-Formylthiophene
- 3-Thienophenecarboxyaldehyde
- 3-Thiophenaldehyde
- 3-Thiophenecarbaldehyde
- 3-Thiophenecarboxaldehyde
- 3-thienaldehyde
- 3-thiopene carbaldehyde
- 3-thiophencarboxaldehyde
- 3-thiophene carboxyaldehyde
- 3-thiophenealdehyde
- 3-thiophenecarboaldehyde
- 3-thiophenecarboxaldhyde
- thiophene 3-carbaldehyde
- thiophene 3-carboxaldehyde
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