91275-57-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91275-57-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,2,7 and 5 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 91275-57:
(7*9)+(6*1)+(5*2)+(4*7)+(3*5)+(2*5)+(1*7)=139
139 % 10 = 9
So 91275-57-9 is a valid CAS Registry Number.
91275-57-9Relevant articles and documents
SYNTHESIS OF DEOXYNUCLEOSIDE METHYLPHOSPHONATES VIA A PHOSPHONAMIDITE APPROACH
Jaeger, Alfred,Engels, Joachim
, p. 1437 - 1440 (1984)
Deoxynucleoside methylphosphonamidites 1 have been synthesized as building monomers for the stepwise synthesis of methylphosphonate analogs of oligonucleotides.