433306

Sigma-Aldrich

Dibenzothiophene

purified by sublimation, ≥99%

Synonym(s):
Diphenylene sulfide, DBT
Empirical Formula (Hill Notation):
C12H8S
CAS Number:
Molecular Weight:
184.26
Beilstein/REAXYS Number:
121101
EC Number:
MDL number:
PubChem Substance ID:
Pricing and availability is not currently available.

assay

≥99%

form

crystals

purified by

sublimation

bp

332-333 °C (lit.)

mp

97-100 °C (lit.)

SMILES string

c1ccc2c(c1)sc3ccccc23

InChI

1S/C12H8S/c1-3-7-11-9(5-1)10-6-2-4-8-12(10)13-11/h1-8H

InChI key

IYYZUPMFVPLQIF-UHFFFAOYSA-N

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General description

Dibenzothiophene is an important polycyclic aromatic hydrocarbon (PAH). Kinetics of hydrodesulfurization of dibenzothiophene on presulflded molybdenaalumina catalyst has been studied in a high-pressure-flow microreactor. Biodesulfurization of dibenzothiophene by selective cleavage of carbon sulphur bonds by a thermophilic bacterium Bacillus subtilis WU-S2B has been reported.

Application

Dibenzothiophene was employed as heavy model sulfur compound to investigate the effect of heavy sulfur compounds on the percentage of sulfur in gasoline range during the Fluid Catalytic Cracking (FCC) process.

Pictograms

Exclamation markEnvironment

Signal Word

Warning

Hazard Statements

Precautionary Statements

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

RIDADR

UN 3077 9 / PGIII

WGK Germany

3

K Kirimura et al.
Journal of bioscience and bioengineering, 91(3), 262-266 (2005-10-20)
Heterocyclic organosulfur compounds such as dibenzothiophene (DBT) in petroleum cannot be completely removed by hydrodesulfurization using chemical catalysts. A moderately thermophilic bacterium Bacillus subtilis WU-S2B, which could desulfurize DBT at 50 degrees C through the selective cleavage of carbon-sulfur (CS)...
Selectivity of molybdenum catalyst in hydrodesulfurization, hydrodenitrogenation, and hydrodeoxygenation: Effect of additives on dibenzothiophene hydrodesulfurization.
Nagai M and Toshiaki Kabe.
J. Catal., 81(2), 440-449 (1983)
R W Bouwman et al.
Physics in medicine and biology, 60(20), 7893-7907 (2015-09-26)
For the evaluation of the average glandular dose (AGD) in digital mammography (DM) and digital breast tomosynthesis (DBT) phantoms simulating standard model breasts are used. These phantoms consist of slabs of polymethyl methacrylate (PMMA) or a combination of PMMA and...
Kristina Lång et al.
European radiology, 26(1), 184-190 (2015-05-02)
To assess the performance of one-view digital breast tomosynthesis (DBT) in breast cancer screening. The Malmö Breast Tomosynthesis Screening Trial is a prospective population-based one-arm study with a planned inclusion of 15000 participants; a random sample of women aged 40-74...
Meijun Li et al.
Journal of chromatography. A, 1233, 126-136 (2012-03-03)
Polycyclic aromatic sulfur heterocyclics (PASHs) consist mainly of thiophene class compounds, and are the most important organosulfur compounds in crude oils and sediment extracts. Dibenzothiophene (DBT) and its methylated homologues were identified on mass chromatograms by comparison with retention indices...

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