72718-44-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72718-44-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,7,1 and 8 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 72718-44:
(7*7)+(6*2)+(5*7)+(4*1)+(3*8)+(2*4)+(1*4)=136
136 % 10 = 6
So 72718-44-6 is a valid CAS Registry Number.
72718-44-6Relevant articles and documents
NEW INTERMEDIATES FOR THE SYNTHESIS OF OLIGONUCLEOTIDES BY THE PHOSPHITE TRIESTER APPROACH
Fourrey, J. L.,Shire, D. J.
, p. 729 - 732 (1981)
Heterocyclic bases such as triazole and tetrazole have been used to increase selectivity of phosphorylation of nucleosides in oligonucleotide synthesis via the phosphite triesters.