219642-22-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 219642-22-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,9,6,4 and 2 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 219642-22:
(8*2)+(7*1)+(6*9)+(5*6)+(4*4)+(3*2)+(2*2)+(1*2)=135
135 % 10 = 5
So 219642-22-5 is a valid CAS Registry Number.
219642-22-5Relevant articles and documents
The synthesis of 2'-deoxy-L-cytidine-3'-phosphate
Kozlov, Igor A.,Orgel, Leslie E.
, p. 2249 - 2254 (1998)
Improvements in the synthesis of 2'-deoxy-L-cytidine-3'-phosphate from L-arabinose are described.