156569-33-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156569-33-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,5,6 and 9 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 156569-33:
(8*1)+(7*5)+(6*6)+(5*5)+(4*6)+(3*9)+(2*3)+(1*3)=164
164 % 10 = 4
So 156569-33-4 is a valid CAS Registry Number.
156569-33-4Relevant articles and documents
Synthesis of C-6 pyrimidine acyclic nucleoside analogs as potential antiviral agents
Hsu,Wise,Shannon,Drach,Townsend
, p. 563 - 584 (2007/10/02)
A number of pyrimidine acyclic nucleosides in which the acyclic moiety is attached to the C-6 position rather than N-1 of the pyrimidine ring have been prepared. This was accomplished via treatment of lithiated 2,4-dimethoxy- 5,6-dimethylpyrimidine, or, 2