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Merck
CN

247154

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
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
24854854
EC Number:
221-546-8
Beilstein/REAXYS Number:
107642
MDL number:
MFCD00005465
Assay:
99%
Form:
liquid

Key Documents

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Product Name

3,4-Dibromothiophene, 99%

InChI key

VGKLVWTVCUDISO-UHFFFAOYSA-N

InChI

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

SMILES string

Brc1cscc1Br

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.)

functional group

bromo

Quality Level

100

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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.

General description

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

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

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

target_organs

Respiratory system

Storage Class

10 - Combustible liquids

wgk

WGK 3

flash_point_f

230.0 °F - closed cup

flash_point_c

110 °C - closed cup

ppe

Eyeshields, Gloves, type ABEK (EN14387) respirator filter

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
SDBB5162
STBL3340
STBK8566
STBK1185
STBJ4075

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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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