C8H6S
134.2 g/mol
Pharmaceutical IntermediateWarning
Benzo[b]thiophene
CAS95-15-8EC202-395-7
Category
Pharmaceutical Intermediate
Compound Class
Heterocycle
Primary Use
Pharmaceutical Intermediate
Benzo[b]thiophene is an organic compound consisting of a benzene ring fused to a thiophene ring. It serves as a key building block in the synthesis of pharmaceuticals and dyes.
pharmaceutical intermediatedye 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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Related Compounds
ReferenceSame Category
5-amino-2-hydroxybenzimidazole
CAS95-23-8
pharmaceutical intermediate
ReferenceSame Category
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ReferenceSame Category
Methylhydroquinone
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ReferenceSame Category
N-[3-Methyl-5-[(phenylmethyl)thio]-1,3,4-thiadiazol-2(3H)-ylidene]acetamide
CAS95046-30-3
pharmaceutical intermediate
Referencesame scaffold
Benzo[b]thiophene-2-boronic acid
CAS98437-23-1
research compound
Referencesame scaffold
[(5-Chlorobenzo[b]thiophen-3-yl)methyl]amine
CAS71625-90-6
research compound
Referencesame scaffold
3-Bromo-1-benzothiophene
CAS7342-82-7
research compound
Safety Reference
Warning
H302Harmful if swallowed
H411Toxic to aquatic life with long lasting effects
Customs Tariff Classification
The international HS code for Benzo[b]thiophene (CAS 95-15-8) 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-benzothiophene
InChIKey
FCEHBMOGCRZNNI-UHFFFAOYSA-N
SMILES
C1=CC=C2C(=C1)C=CS2
Synonyms (16)
- 1-Benzothiophene
- 1-Thiaindene
- 1-benzothiophen
- 2,3-Benzothiophene
- Benzo[b]thiophene
- Benzothiofuran
- Benzothiophen
- Thianaftene
- Thianaphtene
- Thianaphthen
- Thianaphthene
- Thianapthene
- Thionaphthene
- hydrobenzothiophene
- thionaphthen
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