C4H4S
84.14 g/mol
Pharmaceutical IntermediateDanger
Thiofuran
CAS110-02-1EC203-729-4
Category
Pharmaceutical Intermediate
Compound Class
Heterocycle
Primary Use
Pharmaceutical Intermediate
Thiofuran is a colorless liquid with a benzene-like odor. It is an aromatic heterocyclic compound utilized primarily as a pharmaceutical intermediate and solvent.
pharmaceutical intermediatesolvent
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
2,5-dimethyl-2,5-hexanediol
CAS110-03-2
pharmaceutical intermediate
ReferenceSame Category
Acetone semicarbazone
CAS110-20-3
pharmaceutical intermediate
ReferenceSame Category
Isopropyl myristate
CAS110-27-0
pharmaceutical intermediate
ReferenceSame Category
1,4-dibromobutane
CAS110-52-1
pharmaceutical intermediate
Referencestereoisomer of
Thiophene-d4
CAS2036-39-7
research compound
Referencestereoisomer of
THIOPHENE-2,5-D2
CAS2041-42-1
research compound
Safety Reference
Danger
H225Highly flammable liquid and vapour
H302Harmful if swallowed
H312Harmful in contact with skin
H315Causes skin irritation
H318Causes serious eye damage
H319Causes serious eye irritation
H331Toxic if inhaled
H332Harmful if inhaled
H335May cause respiratory irritation
H412Harmful to aquatic life with long lasting effects
H402Harmful to aquatic life
H373May cause damage to organs through prolonged or repeated exposure
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for Thiofuran (CAS 110-02-1) 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
thiophene
InChIKey
YTPLMLYBLZKORZ-UHFFFAOYSA-N
SMILES
C1=CSC=C1
Synonyms (29)
- 2-Thiophene
- CP 34
- Divinylene sulfide
- Divinylene sulphide
- Furan, thio-
- HUILE HS0
- Hopkin's lactic acid reagent
- Huile H50
- Huile HSO
- Thiacyclopentadiene
- Thiaphene
- Thiofen
- Thiofen [Czech]
- Thiofuram
- Thiofuran
- Thiofurfuran
- Thiole
- Thiophen
- Thiophene, Reagent
- Thiophene, polymers
- Thiophenes
- Thiotetrole
- USAF EK-1860
- monothiophene
- thiophene-
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