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Ethanesulfonyl fluoride, 2,2,2-trifluoro-, also known as 2,2,2-trifluoroethanesulfonyl fluoride or TFEF, is a colorless, volatile, and highly reactive chemical compound with the molecular formula C2H3F3O2S. It is a derivative of ethanesulfonyl fluoride, where three fluorine atoms replace three hydrogen atoms on the ethyl group. TFEF is an important intermediate in the synthesis of various pharmaceuticals, agrochemicals, and other specialty chemicals due to its unique reactivity and ability to form stable carbon-sulfur bonds. It is typically produced through the reaction of 2,2,2-trifluoroethanol with chlorosulfonic acid or other sulfonylating agents. The compound is sensitive to moisture and must be handled under anhydrous conditions to prevent hydrolysis. TFEF is also known for its potential use as a chemical warfare agent due to its ability to inhibit the enzyme acetylcholinesterase, leading to the accumulation of acetylcholine in the nervous system and causing severe physiological effects. However, its use in this context is strictly regulated and controlled under international law.

503-39-9

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503-39-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 503-39-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,0 and 3 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 503-39:
(5*5)+(4*0)+(3*3)+(2*3)+(1*9)=49
49 % 10 = 9
So 503-39-9 is a valid CAS Registry Number.

503-39-9SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name 2,2,2-trifluoroethanesulfonyl fluoride

1.2 Other means of identification

Product number -
Other names 2,2,2-Trifluoromethansulfonylfluorid

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:503-39-9 SDS

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