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56946-83-9

Basic Information
CAS No.: 56946-83-9
Name: 2,5-Dichlorothiophene-3-sulfonyl chloride
Article Data: 8
Molecular Structure:
Molecular Structure of 56946-83-9 (2,5-Dichlorothiophene-3-sulfonyl chloride)
Formula: C4H Cl3 O2 S2
Molecular Weight: 251.542
Synonyms: 2,5-Dichloro-3-thienylsulfonylchloride; 2,5-Dichloro-3-thiophenesulfonyl chloride;2,5-Dichlorothiophene-3-sulphonyl chloride
Density: 1.697
Melting Point: 130 °C
Boiling Point: 256-257 ºC
Flash Point: >110 ºC
Hazard Symbols:
Risk Codes: R34   
Safety: S26;S36/37/39;S45
Transport Information: UN 1760
PSA: 70.76000
LogP: 4.06320
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    2,5-Dichlorothiophene-3-Sulfonyl Chloride

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    2,5-dichlorothiophene-3-sulfonyl chloride

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    Molecular Formula : C4HCl3O2S2 CAS : 56946-83-9 Content: Purity:97% Specification : 2,5-dichlorothiophene-3-sulfonyl chloride CAS#:56946-8…

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    2,5-Dichlorothiophene-3-sulfonyl chloride

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    2,5-dichlorothiophene-3-sulfonyl chloride

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    2,5-Dichlorothiophene-3-sulfonyl chloride

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Chemistry

The Molecular Structure of  2,5-Dichlorothiophene-3-sulfonyl chloride (CAS NO.56946-83-9) is

Cas Register Number: 56946-83-9
Synonyms:  2,5-Dichlorothiophene-3-sulfonyl chloride ; 3-Thiophenesulfonyl chloride, 2,5-dichloro- ; 2,5-Dichlorothiophene-3-Sulphonyl Chloride ; 2,5-Dichlorothiophene-3-sulphonyláchloride
Molecular formula: C4HCl3O2S2
Molecular weight: 251.5385g/mol 
Product Categories: Thiophene&Benzothiophene;Halogenated Heterocycles;Heterocyclic Building Blocks;Thiophenes;ThiophenesBuilding Blocks 
H bond acceptors: 2
H bond donors: 0
Freely Rotating Bonds: 1
Polar Surface Area: 70.76 Å2
Index of Refraction: 1.607
Molar Refractivity: 48.19 cm3
Molar Volume: 139.4 cm3
Surface Tension: 55.8 dyne/cm
Density: 1.803 g/cm3
Flash Point: 148.9 °C
Enthalpy of Vaporization: 54.19 kJ/mol
Boiling Point: 322.5 °C at 760 mmHg
Vapour Pressure of  2,5-Dichlorothiophene-3-sulfonyl chloride (CAS NO.56946-83-9): 0.000523 mmHg at 25°C

Safety Profile

Hazard Codes: CorrosiveC,IrritantXi
Risk Statements: 34 
R34:Causes burns.
Safety Statements: 26-36/37/39-45
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection. 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
RIDADR: UN 1760 8/PG 3
WGK Germany: 3
Hazard Note:Irritant
HazardClass: 8
PackingGroup: II