108472
2,5-Dibromothiophene
95%
Synonym(s):
2,5-dibromo-thiophene
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About This Item
Empirical Formula (Hill Notation):
C4H2Br2S
CAS Number:
Molecular Weight:
241.93
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22
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Assay
95%
refractive index
n20/D 1.629 (lit.)
bp
211 °C (lit.)
mp
−6 °C (lit.)
density
2.147 g/mL at 25 °C (lit.)
functional group
bromo
SMILES string
Brc1ccc(Br)s1
InChI
1S/C4H2Br2S/c5-3-1-2-4(6)7-3/h1-2H
InChI key
KBVDUUXRXJTAJC-UHFFFAOYSA-N
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General description
2,5-Dibromothiophene polymerizes by debromination with magnesium catalyzed by nickel compounds to form poly(2,5- thienylene) .
Application
2,5-Dibromothiophene was used as starting reagent for the synthesis of α,α′-didecylquater-, -quinque- and -sexi-thiophenes. It was used in the preparation of soluble α,ω-diformyl-a-oligothiophenes.
Signal Word
Warning
Hazard Statements
Precautionary Statements
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)
210.2 °F - closed cup
Flash Point(C)
99 °C - closed cup
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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Preparation of thermostable and electric-conducting poly (2, 5-thienylene).
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Synthesis and characterization of 3−hexyl multi−substituted α, ω−diformyl−α−oligothiophenes (n= 3, 6, 8).
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