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Sigma-Aldrich

3,4-Dibromothiophene

99%

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Synonym(s):
3,4-Dibromothiophene
Empirical Formula (Hill Notation):
C4H2Br2S
CAS Number:
Molecular Weight:
241.93
Beilstein/REAXYS Number:
107642
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Quality Level

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

signalword

Warning

Hazard Classifications

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

target_organs

Respiratory system

wgk_germany

WGK 3

flash_point_f

closed cup

flash_point_c

closed cup

ppe

Eyeshields, Gloves, type ABEK (EN14387) respirator filter


Certificates of Analysis (COA)

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2-Bromothiophene 98%

Sigma-Aldrich

124168

2-Bromothiophene

An Alternative Synthysis of Thieno [3, 4-b] Thiophene.
Brandsma L and Verkruijsse HD.
Synthetic Communications, 20(15), 2275-2277 (1990)
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
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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