136884-31-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 136884-31-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,8,8 and 4 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 136884-31:
(8*1)+(7*3)+(6*6)+(5*8)+(4*8)+(3*4)+(2*3)+(1*1)=156
156 % 10 = 6
So 136884-31-6 is a valid CAS Registry Number.
136884-31-6Relevant articles and documents
PHOSPHORYL GROUP PARTICIPATION IN THE REACTIONS OF N-PHOSPHORYLDIPEPTIDE ACIDS
Ma, Xiao-Bo,Zhao, Yu-Fen
, p. 107 - 114 (2007/10/02)
The phosphoryl group participation is the key to the intramolecular cyclocondensation and esterification reactions of N-phosphoryldipeptide acids and their coupling reactions with amino acid esters. Key words: Self-activation; coupling reaction; esterific