204779-33-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 204779-33-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,4,7,7 and 9 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 204779-33:
(8*2)+(7*0)+(6*4)+(5*7)+(4*7)+(3*9)+(2*3)+(1*3)=139
139 % 10 = 9
So 204779-33-9 is a valid CAS Registry Number.
204779-33-9Relevant articles and documents
Synthesis of new cytosine and thymine derivatives of potential immunomodulatory activity
Pini,Rossi,Stradi
, p. 779 - 794 (2007/10/03)
The synthesis and the main chemical and physical properties of some N1 alkylated cytosines and thymines are described.