216959-44-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 216959-44-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,6,9,5 and 9 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 216959-44:
(8*2)+(7*1)+(6*6)+(5*9)+(4*5)+(3*9)+(2*4)+(1*4)=163
163 % 10 = 3
So 216959-44-3 is a valid CAS Registry Number.
216959-44-3Relevant articles and documents
N-Boc ethyl oxamate: A new nitrogen nucleophile for use in Mitsunobu reactions
Berree, Fabienne,Michelot, Gwendal,Le Corre, Maurice
, p. 8275 - 8276 (1998)
N-Boc ethyl oxamate can be directly coupled with primary and secondary alcohols under Mitsunobu conditions to afford various N-Boc mines after mild deprotection.