Cas 98634-21-0,4-nitrophenyl 3-nitrobenzenesulfonate

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Check Digit Verification of cas no

The CAS Registry Mumber 98634-21-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,6,3 and 4 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 98634-21:
(7*9)+(6*8)+(5*6)+(4*3)+(3*4)+(2*2)+(1*1)=170
170 % 10 = 0
So 98634-21-0 is a valid CAS Registry Number.

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98634-21-0Relevant articles and documents

Piperidinolysis of 4-Nitrophenyl X-Substituted benzenesulfonates and related compounds: Effect of changing leaving group and electrophilic center

Um, Ik-Hwan,Akhtar, Kalsoom

experimental part, p. 234 - 237 (2010/08/06)

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98634-21-0