121421-28-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121421-28-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,4,2 and 1 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 121421-28:
(8*1)+(7*2)+(6*1)+(5*4)+(4*2)+(3*1)+(2*2)+(1*8)=71
71 % 10 = 1
So 121421-28-1 is a valid CAS Registry Number.
121421-28-1Relevant articles and documents
Replacement of the 3'-CH group by nitrogen in the carbocyclic analogue of thymidine
Ng,Orgel
, p. 1754 - 1757 (2007/10/02)
We have prepared (4R)-4-thyminyl-D-prolinol, and the analogue of 3'-deoxythymidine in which sugar has been replaced by D-prolinol. This strongly basic secondary amine has been converted to the corresponding hydroxylamine, an analogue of either thymidine o
