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Benzenesulfonyl fluoride, 5-chloro-2,4-difluoro-, also known as 5-chloro-2,4-difluorobenzenesulfonyl fluoride, is a chemical compound with the molecular formula C6H2ClF2O2S. It is a colorless to pale yellow crystalline solid that is soluble in organic solvents. Benzenesulfonyl fluoride, 5-chloro-2,4-difluoro- is primarily used as a reagent in organic synthesis, particularly in the preparation of various pharmaceuticals and agrochemicals. It is known for its reactivity as a sulfonyl fluoride, which can act as a good leaving group in nucleophilic substitution reactions. Due to its reactivity and potential hazards, it is important to handle Benzenesulfonyl fluoride, 5-chloro-2,4-difluoro- with care, following appropriate safety protocols.

3782-66-9

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3782-66-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 3782-66-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,7,8 and 2 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 3782-66:
(6*3)+(5*7)+(4*8)+(3*2)+(2*6)+(1*6)=109
109 % 10 = 9
So 3782-66-9 is a valid CAS Registry Number.

3782-66-9SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name 5-Chlor-2.4-difluor-benzolsulfonsaeure-fluorid

1.2 Other means of identification

Product number -
Other names 2,4-Difluor-5-chlor-benzolsulfofluorid

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:3782-66-9 SDS

3782-66-9Relevant academic research and scientific papers

Tetraphenylphosphonium bromide-catalyzed 'Halex' fluorination of chloroaryl sulfonyl chlorides

Suzuki, Hiroshi,Kageyama, Hiroyuki,Yoshida, Yasuo,Kimura, Yoshikazu

, p. 335 - 337 (2007/10/02)

Halogen-exchange of chloroaryl sulfonylchloride derivatives with spray-dried potassium fluoride was found to proceed efficiently by employing tetraphenylphosphonium bromide as a catalyst.Subsequent desulfonylation of the fluoroaryl sulfonyl derivatives readily afforded fluoroaromatics under acidic condition.

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