Benzothiophene

Benzothiophene

Names
IUPAC name Benzo[b]thiophene
Other names 1-Benzothiophene Thianaphthene Benzothiofuran
Identifiers
CAS Number	95-15-8 Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:35858 Y
ChEMBL	ChEMBL87112 Y
ChemSpider	6951 Y
ECHA InfoCard	100.002.178
RTECS number	202-395-7
CompTox Dashboard (EPA)	DTXSID2052736
InChI InChI=1S/C8H6S/c1-2-4-8-7(3-1)5-6-9-8/h1-6H Y Key: FCEHBMOGCRZNNI-UHFFFAOYSA-N Y InChI=1/C8H6S/c1-2-4-8-7(3-1)5-6-9-8/h1-6H Key: FCEHBMOGCRZNNI-UHFFFAOYAI
SMILES s2c1ccccc1cc2
Properties
Chemical formula	C8H6S
Molar mass	134.20 g·mol−1
Appearance	White solid
Density	1.15 g/cm3
Melting point	32 °C (90 °F; 305 K)
Boiling point	221 °C (430 °F; 494 K)
Hazards
Flash point	110 °C
Related compounds
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is YN ?) Infobox references

Benzothiophene is an aromatic organic compound with a molecular formula C₈H₆S and an odor similar to naphthalene (mothballs). It occurs naturally as a constituent of petroleum-related deposits such as lignite tar. Benzothiophene has no household use. It is used primarily in industry and research.

Being a heterocyclic compound, benzothiophene finds use in research as a starting material for the synthesis of larger, usually bioactive structures. It is found within the chemical structures of pharmaceutical drugs such as raloxifene, zileuton, and sertaconazole, and also BTCP. It is also used in the manufacturing of dyes such as thioindigo.

Its aromaticity makes it relatively stable, although as a heterocycle, it has reactive sites which allow for functionalization.