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247154

Sigma-Aldrich

3,4-Dibromothiophene

99%

Synonym(s):

3,4-Dibromothiophene

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About This Item

Empirical Formula (Hill Notation):
C4H2Br2S
CAS Number:
3141-26-2
Molecular Weight:
241.93
Beilstein:
107642
EC Number:
221-546-8
MDL number:
MFCD00005465
UNSPSC Code:
12352100
PubChem Substance ID:
24854854
NACRES:
NA.22

Quality Level

100

Assay

99%

form

liquid

refractive index

n20/D 1.640 (lit.)

bp

221-222 °C (lit.)

mp

4-5 °C (lit.)

density

2.188 g/mL at 25 °C (lit.)

SMILES string

Brc1cscc1Br

InChI

1S/C4H2Br2S/c5-3-1-7-2-4(3)6/h1-2H

InChI key

VGKLVWTVCUDISO-UHFFFAOYSA-N

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General description

Double photoionization spectra of 3,4-dibromothiophene has been investigated by coincidence spectroscopy technique based on electron time-of-flight measurement.

Application

3,4-Dibromothiophene was used in the preparation of thieno[3,4-b]thiophene. It was aslo used as starting material in the synthesis of alkyl substituted, fused thiophenes.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

230.0 °F - closed cup

Flash Point(C)

110 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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P Linusson et al.
The Journal of chemical physics, 129(23), 234303-234303 (2008-12-24)
We report the double photoionization spectra of thiophene, 3-bromothiophene, and 3,4-dibromothiophene using a coincidence spectroscopy technique based on electron time-of-flight measurements. Spectra have been recorded between the onset and 40.814 eV using He IIalpha radiation. The He I photoelectron spectrum
An Alternative Synthysis of Thieno [3, 4-b] Thiophene.
Brandsma L and Verkruijsse HD.
Synthetic Communications, 20(15), 2275-2277 (1990)
Mingqian He et al.
The Journal of organic chemistry, 72(2), 442-451 (2007-01-16)
We have established a series of synthetic methods to synthesize alkyl-substituted fused thiophenes with degrees of fusion from two to seven rings. These fused thiophene ring compounds have very good solubility in common organic solvents, making possible the solution processing

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