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ChemicalBook--->CAS DataBase List--->3172-52-9

3172-52-9

3172-52-9 Structure

3172-52-9 Structure
IdentificationMore
[Name]

2,5-Dichlorothiophene
[CAS]

3172-52-9
[Synonyms]

2,5-DICHLOROTHIOPHENE
2,6-DICHLOROTHIOPHENE
DICHLOROTHIOPHENE
2,5-dichloro-thiophen
thiophene,2,5-dichloro-
2,5-Dichlorothiophenene
2,5-Dichlorothiophene,97%
5-chloro-2-thienyl chloride
[EINECS(EC#)]

221-638-8
[Molecular Formula]

C4H2Cl2S
[MDL Number]

MFCD00005423
[Molecular Weight]

153.03
[MOL File]

3172-52-9.mol
Chemical PropertiesBack Directory
[Appearance]

clear colorless to slightly yellow liquid
[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
[Fp ]

59 °C
[storage temp. ]

0-6°C
[form ]

liquid
[Specific Gravity]

1.442
[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]

3172-52-9(EPA Substance)
Safety DataBack Directory
[Hazard Codes ]

T+,Xn
[Risk Statements ]

R40:Limited evidence of a carcinogenic effect.
R26/27/28:Very Toxic by inhalation, in contact with skin and if swallowed .
R36/37/38:Irritating to eyes, respiratory system and skin .
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed .
[Safety Statements ]

S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S36/37:Wear suitable protective clothing and gloves .
S36:Wear suitable protective clothing .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
[RIDADR ]

2929
[WGK Germany ]

3
[TSCA ]

T
[HazardClass ]

6.1
[PackingGroup ]

II
[HS Code ]

29349990
Raw materials And Preparation ProductsBack Directory
[Preparation Products]

Lornoxicam-->Brinzolamide-->2,5-Dichlorothiophene-3-sulfonyl chloride-->5-Chloro-2-thiophenecarboxylic Acid-->5-CHLOROTHIOPHENE-2-CARBONYL CHLORIDE-->2,5-Dichlorothiophene-3-sulfonamide-->5-CHLORO-2-THIOPHENECARBOXYLIC ACID HYDRAZIDE-->2,5-DICHLORO-3,4-DINITROTHIOPHENE-->2,3,5-TRICHLOROTHIOPHENE-->ETHYL 5-CHLOROTHIOPHENE-2-CARBOXYLATE-->3-Acetyl-2,5-dichlorothiophene-->2-Chlorothiophene-->3,4-Dichlorothiophene-->5-CHLORO-2-THIOPHENECARBONITRILE-->2,5-dichloro-3-(chloromethyl)thiophene
Material Safety Data Sheet(MSDS)Back Directory
[msds information]

2,5-Dichlorothiophene(3172-52-9).msds
Hazard InformationBack Directory
[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
Spectrum DetailBack Directory
[Spectrum Detail]

2,5-Dichlorothiophene(3172-52-9)MS
2,5-Dichlorothiophene(3172-52-9)1HNMR
2,5-Dichlorothiophene(3172-52-9)13CNMR
2,5-Dichlorothiophene(3172-52-9)IR1
2,5-Dichlorothiophene(3172-52-9)Raman
Well-known Reagent Company Product InformationBack Directory
[Acros Organics]

2,5-Dichlorothiophene, 98%(3172-52-9)
[Alfa Aesar]

2,5-Dichlorothiophene, 98%(3172-52-9)
[Sigma Aldrich]

3172-52-9(sigmaaldrich)
[TCI AMERICA]

2,5-Dichlorothiophene,>96.0%(GC)(3172-52-9)
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