Dibenzothiophene

Dibenzothiophene (DBT, diphenylene sulfide) is the organosulfur compound consisting of two benzene rings fused to a central thiophene ring. It has the chemical formula C12H8S. It is a colourless solid that is chemically somewhat similar to anthracene. This tricyclic heterocycle, and especially its disubstituted derivative 4,6-dimethyldibenzothiophene are problematic impurities in petroleum.

Dibenzothiophene
Names
Preferred IUPAC name
Dibenzo[b,d]thiophene
Other names
Diphenylene sulfide, DBT
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.004.613
EC Number
  • 205-072-9
KEGG
PubChem CID
RTECS number
  • HQ3490550
UNII
  • InChI=1S/C12H8S/c1-3-7-11-9(5-1)10-6-2-4-8-12(10)13-11/h1-8H Y
    Key: IYYZUPMFVPLQIF-UHFFFAOYSA-N Y
  • InChI=1/C12H8S/c1-3-7-11-9(5-1)10-6-2-4-8-12(10)13-11/h1-8H
    Key: IYYZUPMFVPLQIF-UHFFFAOYAY
SMILES
  • c1ccc2c(c1)c3ccccc3s2
Properties
C12H8S
Molar mass 184.26 g/mol
Appearance Colourless crystals
Density 1.252 g/cm3
Melting point 97 to 100 °C (207 to 212 °F; 370 to 373 K) (lit.)
Boiling point 332 to 333 °C (630 to 631 °F; 605 to 606 K)
insol.
Solubility in other solvents benzene and related
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 flammable, toxic
GHS labelling:
Danger
H301, H302, H311, H315, H331, H332, H410
P261, P264, P270, P271, P273, P280, P301+P312, P302+P352, P304+P312, P304+P340, P311, P312, P321, P322, P330, P332+P313, P361, P362, P363, P391, P403+P233, P405, P501
Related compounds
Related compounds
 Thiophene
Anthracene
Benzothiophene
Dibenzofuran
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
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