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216494-25-6

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216494-25-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 216494-25-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,6,4,9 and 4 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 216494-25:
(8*2)+(7*1)+(6*6)+(5*4)+(4*9)+(3*4)+(2*2)+(1*5)=136
136 % 10 = 6
So 216494-25-6 is a valid CAS Registry Number.

216494-25-6Relevant articles and documents

Diastereoselection in the conjugate additions of organocopper reagents to N-enoyloxazolidinones

Williams, David R.,Kissel, William S.,Li, Jie Jack

, p. 8593 - 8596 (1998)

A survey of conjugate additions of Yamamoto organocopper reagents to N- enoyl-4-substituted oxazolidinones is reported. Diastereofacial selectivity is reversed for 4-phenyl and 4-benzyloxazolidinones of the same relative configuration. Alkenylcopper reage

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