121353-87-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121353-87-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,3,5 and 3 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 121353-87:
(8*1)+(7*2)+(6*1)+(5*3)+(4*5)+(3*3)+(2*8)+(1*7)=95
95 % 10 = 5
So 121353-87-5 is a valid CAS Registry Number.
121353-87-5Relevant articles and documents
3',3'-Difluoro-3'-deoxythymidine: Comparison of anti-HIV activity to 3'- fluoro-3'-deoxythymidine
Bergstrom,Mott,De Clercq,Balzarini,Swartling
, p. 3369 - 3372 (1992)
3',3'-Difluoro-3'-deoxythymidine (3) has been synthesized in four steps from thymidine, and characterized by 1H NMR and NOE experiments. The J(HF) coupling constants support a conformation in solution that is predominantly 2'-endo (S). Although
