221258-63-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 221258-63-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,2,5 and 8 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 221258-63:
(8*2)+(7*2)+(6*1)+(5*2)+(4*5)+(3*8)+(2*6)+(1*3)=105
105 % 10 = 5
So 221258-63-5 is a valid CAS Registry Number.
221258-63-5Relevant academic research and scientific papers
Synthesis of an enantiomerically pure carbocyclic DNA abasic site analogue
Thomas, Martial,Castaing, Bertrand,Fourrey, Jean-Louis,Zelwer, Charles
, p. 239 - 243 (2007/10/03)
A short synthetic route to an appropriately derivatized carbocyclic analogue of a basic site residues of DNA is proposed.
