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71963-98-9

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71963-98-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 71963-98-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,9,6 and 3 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 71963-98:
(7*7)+(6*1)+(5*9)+(4*6)+(3*3)+(2*9)+(1*8)=159
159 % 10 = 9
So 71963-98-9 is a valid CAS Registry Number.

71963-98-9Relevant articles and documents

CONVENIENT METHODS FOR THE PREPARATION OF VINYLIC AND ALLYLIC SULFONES FROM ALKENES

Inomata, Katsuhiko,Kobayashi, Toshifumi,Sasaoka, Shin-ichi,Kinoshita, Hideki,Kotake, Hiroshi

, p. 289 - 292 (2007/10/02)

1 or 2-p-Toluenesulfonyl(=tosyl)-1-alkenes were regioselectively prepared from 1-alkenes via iodosulfonization or sulfonylmercuration, respectively.Conversion of 1-tosyl-1-alkenes to the corresponding allylic sulfones, 1-tosyl-2-alkenes, was achieved by t

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