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2,5-Dichlorothiophene

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2,5-Dichlorothiophene Basic information

Product Name:
2,5-Dichlorothiophene
Synonyms:
  • DICHLOROTHIOPHENE
  • 2,5-DICHLOROTHIOPHENE
  • 2,6-DICHLOROTHIOPHENE
  • 2,5-dichloro-thiophen
  • thiophene,2,5-dichloro-
  • 2,5-Dichlorothiophenene
  • 2,5-Dichlorothiophene,97%
  • 5-chloro-2-thienyl chloride
CAS:
3172-52-9
MF:
C4H2Cl2S
MW:
153.03
EINECS:
221-638-8
Product Categories:
  • Heterocycle-oher series
  • Halogenated Heterocycles
  • Thiophenes
  • Organics
  • Heterocyclic Building Blocks
  • ThiophenesBuilding Blocks
  • Thiophene&Benzothiophene
  • Miscellaneous
  • Thiophens
Mol File:
3172-52-9.mol
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2,5-Dichlorothiophene Chemical Properties

Melting point:
-41--40°C
Boiling point:
162 °C (lit.)
Density 
1.442 g/mL at 25 °C (lit.)
refractive index 
1.561-1.563
Flash point:
59 °C
storage temp. 
2-8°C
form 
liquid
Specific Gravity
1.442
color 
Colorless to Light yellow to Light orange
BRN 
109887
CAS DataBase Reference
3172-52-9(CAS DataBase Reference)
NIST Chemistry Reference
Thiophene, 2,5-dichloro-(3172-52-9)
EPA Substance Registry System
Thiophene, 2,5-dichloro- (3172-52-9)
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Safety Information

Hazard Codes 
T+,Xn
Risk Statements 
40-26/27/28-36/37/38-20/21/22
Safety Statements 
45-36/37-28A-36-26
RIDADR 
2929
WGK Germany 
3
TSCA 
T
HazardClass 
6.1
PackingGroup 
II
HS Code 
29349990

MSDS

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2,5-Dichlorothiophene Usage And Synthesis

Chemical Properties

clear colorless to slightly yellow liquid

Uses

2,5-Dichlorothiophene is mainly used as a pharmaceutical intermediate. It is used in the synthesis of 3,4-disubstituted thiophenes.

Synthesis Reference(s)

Tetrahedron, 52, p. 8863, 1996 DOI: 10.1016/0040-4020(96)00433-4

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