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1258439-44-9

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1258439-44-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1258439-44-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,8,4,3 and 9 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1258439-44:
(9*1)+(8*2)+(7*5)+(6*8)+(5*4)+(4*3)+(3*9)+(2*4)+(1*4)=179
179 % 10 = 9
So 1258439-44-9 is a valid CAS Registry Number.

1258439-44-9Downstream Products

1258439-44-9Relevant articles and documents

Preparation of arylsulfonyl chlorides by chlorosulfonylation of in situ generated diazonium salts using a continuous flow reactor

Malet-Sanz, Laia,Madrzak, Julia,Ley, Steven V.,Baxendale, Ian R.

experimental part, p. 5324 - 5332 (2011/01/12)

A new flow procedure for the preparation of arylsulfonyl chlorides from aniline starting materials is described. The reaction conditions are mild, requiring no added acid and are amenable to continuous flow processing, in a safe, easily scalable and less labour intensive way than the corresponding batch method.

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