156938-64-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156938-64-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,9,3 and 8 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 156938-64:
(8*1)+(7*5)+(6*6)+(5*9)+(4*3)+(3*8)+(2*6)+(1*4)=176
176 % 10 = 6
So 156938-64-6 is a valid CAS Registry Number.
156938-64-6Relevant articles and documents
A facile synthesis of optically active C2-symmetric 2,5-disubstituted pyrrolidines and other β,β′-dihydroxyamines
Koh, Kevin,Ben, Robert N.,Durst
, p. 375 - 378 (1994)
2,5-Dibromoadipic acid has been converted into the di-(R)-pantolactone ester of (S,S)-pyyrolidine-2,5-dicarboxylic acid in two steps. This compound serves as a precursor to C2-symmetric 2,5-disubstituted pyrrolidines. The synthesis of linear C
