Home/Compounds/Pharmaceutical Intermediate/6-Methyl-4-oxo-5,6-dihydro-4H-thieno[2,3-b]thiopyran-2-sulfonamide
C8H9NO3S3
263.4 g/mol
Pharmaceutical IntermediateWarning
6-Methyl-4-oxo-5,6-dihydro-4H-thieno[2,3-b]thiopyran-2-sulfonamide
CAS120279-88-1EC601-694-3
Category
Pharmaceutical Intermediate
Compound Class
Heterocycle
Primary Use
Pharmaceutical Intermediate
This compound is a pharmaceutical intermediate with a heterocyclic ring system containing sulfur and nitrogen. It is used in the manufacturing of active pharmaceutical ingredients.
Pharmaceutical intermediateChemical synthesis intermediate
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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Referencesame scaffold
(6S)-5,6-Dihydro-6-methyl-4H-thieno[2,3-b]thiopyran-4-one
CAS147086-79-1
pharmaceutical intermediate
Referencesame scaffold
5,6-Dihydro-6-methyl-4H-thieno[2,3-b]thiopyran-4-one
CAS120279-85-8
pharmaceutical intermediate
Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for 6-Methyl-4-oxo-5,6-dihydro-4H-thieno[2,3-b]thiopyran-2-sulfonamide (CAS 120279-88-1) is 2935.90.
HS code (international, 6-digit)
2935.90
EU CN code (8-digit)
2935 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
6-methyl-4-oxo-5,6-dihydrothieno[2,3-b]thiopyran-2-sulfonamide
InChIKey
QMNAQPMXDMLOLD-UHFFFAOYSA-N
SMILES
CC1CC(=O)C2=C(S1)SC(=C2)S(=O)(=O)N
Synonyms (5)
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