6220-45-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6220-45-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,2,2 and 0 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 6220-45:
(6*6)+(5*2)+(4*2)+(3*0)+(2*4)+(1*5)=67
67 % 10 = 7
So 6220-45-7 is a valid CAS Registry Number.
6220-45-7Relevant articles and documents
The facile synthesis of N(1),N(4)-dimethyl-5-substituted cytosines
Pluskota,Jankowski,Koroniak
, p. 2927 - 2934 (2007/10/02)
A facile, high yield synthesis of N(1),N(4)-dimethyl-5-alkyl (methyl, ethyl, n-propyl, n-butyl) cytosines has been described. This method seems to be an alternative and universal route to N(1),N(4)-methylated cytosines with any 5-substituent.
