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131221-54-0

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131221-54-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 131221-54-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,2,2 and 1 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 131221-54:
(8*1)+(7*3)+(6*1)+(5*2)+(4*2)+(3*1)+(2*5)+(1*4)=70
70 % 10 = 0
So 131221-54-0 is a valid CAS Registry Number.

131221-54-0Downstream Products

131221-54-0Relevant articles and documents

Reactions of organic anions. 174. Vicarious Nucleophilic Substitution of hydrogen (VNS) in nitrobenzofuroxans and the Boulton-Katritzky rearrangement of the VNS products

Ostrowski,Stanislaw,Wojciechowski, Krzysztof

, p. 2239 - 2241 (2007/10/02)

The Vicarious Nucleophilic Substitution of hydrogen in 4-nitrobenzofuroxan derivatives by carbanions of chloromethyl phenyl sulfone, chloromethyl p-tolyl sulfone, chloromethyl tert-butyl sulfone, and N,N-dimethyl chloromethane sulfonamide proceeds at posi

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