126789-57-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 126789-57-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,6,7,8 and 9 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 126789-57:
(8*1)+(7*2)+(6*6)+(5*7)+(4*8)+(3*9)+(2*5)+(1*7)=169
169 % 10 = 9
So 126789-57-9 is a valid CAS Registry Number.
126789-57-9Relevant articles and documents
Selective Catalysis of Ester Aminolysis: An Approach to Peptide Active Esters
Siemens, Lori M.,Rottmek, Fred W.,Trzupek, Larry S.
, p. 3507 - 3511 (2007/10/02)
Model studies have been carried out in which the Kaiser-DeGrado procedure for solid-phase synthesis has been combined with the use of reactants with a latent activation feature as a potential route to peptide active esters.The rates of reaction of the 4-(
