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Sigma-Aldrich

Dibenzothiophene

≥99%

Synonym(s):

DBT, Diphenylene sulfide

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About This Item

Empirical Formula (Hill Notation):
C12H8S
CAS Number:
132-65-0
Molecular Weight:
184.26
Beilstein/REAXYS Number:
121101
EC Number:
205-072-9
MDL number:
MFCD00004969
UNSPSC Code:
12352100
PubChem Substance ID:
24861532
NACRES:
NA.22

assay

≥99%

form

crystalline (powder)

color

white

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 representative of polycyclic aromatic hydrocarbons (PAHs). 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
GHS07,GHS09

signalword

Warning

hcodes

H302,H410

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

338.0 °F

flash_point_c

170 °C

ppe

dust mask type N95 (US), Eyeshields, Faceshields, Gloves

Certificates of Analysis (COA)

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The effect of heavy aromatic sulfur compounds on sulfur in cracked naphtha.
Valla JA, et al.
Catalysis Today, 127(1), 92-98 (2007)
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)
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
Shilpi Aggarwal et al.
Molecular bioSystems, 8(10), 2724-2732 (2012-07-27)
Rhodococcus erythropolis has been widely studied for desulfurization. However, activity levels required for commercial application have not been achieved. A major limitation of the current work in biodesulfurization is inadequate information regarding sulfur metabolism generally, and in particular the metabolism
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