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87323-96-4

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87323-96-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87323-96-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,3,2 and 3 respectively; the second part has 2 digits, 9 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 87323-96:
(7*8)+(6*7)+(5*3)+(4*2)+(3*3)+(2*9)+(1*6)=154
154 % 10 = 4
So 87323-96-4 is a valid CAS Registry Number.

87323-96-4Downstream Products

87323-96-4Relevant articles and documents

Organic sulfur mechanisms. 24. Preparation and reaction of 2-hydroxyethanesulfonyl chloride, the first hydroxyalkanesulfonyl chloride

King, James Frederick,Hillhouse, John Henry

, p. 1583 - 1593 (2007/10/02)

2-Hydroxyethanesulfonyl chloride (1a) is readily made by reaction of an aqeous solution of 2-mercaptoethanol (4a) with chlorine.This is the first clearly proved preparation of a compound which is both an alcohol and a sulfonyl chloride.Reactions of 1a with water and alcohols evidently proceed largely by intramolecular cyclization to the transient β-sultone (2a), which then undergoes nucleophilic ring opening to form the products.In the presence of tertiary amines a minor but significant part of the reaction is shown by deuterium labelling to proceed via hydroxymethylsulfene (14), the principal reaction of which is simply to add the alcohol or water; only a small part, if any, of the sulfene (14) loses the hydroxyl group to give the ethenesulfonate derivatives (13 or 22).Aqueous chlorination of 3-mercapto-1-propanol gave 3-chloro-1-propanesulfonyl chloride (5a) and 1,3-propane sultone (2b) with no sign of any 3-hydroxy-1-propanesulfonyl chloride (1b).A mechanism for the aqueous chlorination process invoking a cyclic chlorooxasulfoxonium ion (27) is discussed.

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