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221655-39-6

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221655-39-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 221655-39-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,6,5 and 5 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 221655-39:
(8*2)+(7*2)+(6*1)+(5*6)+(4*5)+(3*5)+(2*3)+(1*9)=116
116 % 10 = 6
So 221655-39-6 is a valid CAS Registry Number.

221655-39-6Downstream Products

221655-39-6Relevant articles and documents

Stereospecificity in the Rearrangement Reactions of an N-Phosphinoyl-O-sulfonylhydroxylamine with Methylamine and tert-Butylamine: Retention of Configuration at Phosphorus as Evidence for the Initial Formation of a Phosphonamidic Sulfonic Mixed Anhydride

Harger, Martin J. P.,Sreedharan-Menon, Ramesh

, p. 3261 - 3268 (2007/10/02)

Reaction of the N-phosphinoyl-O-sulfonylhydroxylamine PhMeCH(Ph)P(O)NHOMs 10 with RNH2 (R = Me or t-Bu) results in migration of the phenyl group from phosphorus to nitrogen which leads to the rearrangement product PhMeCHP(O)(NHPh)NHR.Using samples of 10 e

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