Thiophene
Sulfur-containing aromatic compound / From Wikipedia, the free encyclopedia
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Thiophene is a heterocyclic compound with the formula C4H4S. Consisting of a planar five-membered ring, it is aromatic as indicated by its extensive substitution reactions. It is a colorless liquid with a benzene-like odor. In most of its reactions, it resembles benzene. Compounds analogous to thiophene include furan (C4H4O), selenophene (C4H4Se) and pyrrole (C4H4NH), which each vary by the heteroatom in the ring.
Quick Facts Names, Identifiers ...
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Names | |||
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Preferred IUPAC name
Thiophene[1] | |||
Other names
Thiofuran Thiacyclopentadiene Thiole | |||
Identifiers | |||
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3D model (JSmol) |
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ChEBI | |||
ChEMBL | |||
ChemSpider |
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ECHA InfoCard | 100.003.392 ![]() | ||
PubChem CID |
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RTECS number |
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UNII | |||
CompTox Dashboard (EPA) |
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Properties | |||
C4H4S | |||
Molar mass | 84.14 g/mol | ||
Appearance | colorless liquid | ||
Density | 1.051 g/mL, liquid | ||
Melting point | −38 °C (−36 °F; 235 K) | ||
Boiling point | 84 °C (183 °F; 357 K) | ||
-57.38·10−6 cm3/mol | |||
Refractive index (nD) |
1.5287 | ||
Viscosity | 0.8712 cP at 0.2 °C 0.6432 cP at 22.4 °C | ||
Hazards | |||
Occupational safety and health (OHS/OSH): | |||
Main hazards |
Toxic | ||
GHS labelling:[2] | |||
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Danger | |||
H225, H302, H319, H412 | |||
P210, P260, P262, P273, P305+P351+P338, P403+P235 | |||
NFPA 704 (fire diamond) | |||
Flash point | −1 °C (30 °F; 272 K) | ||
Safety data sheet (SDS) | External MSDS, External MSDS | ||
Related compounds | |||
Related thioethers |
Tetrahydrothiophene Diethyl sulfide | ||
Related compounds |
Furan Selenophene Pyrrole | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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