63673-58-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 63673-58-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,3,6,7 and 3 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 63673-58:
(7*6)+(6*3)+(5*6)+(4*7)+(3*3)+(2*5)+(1*8)=145
145 % 10 = 5
So 63673-58-5 is a valid CAS Registry Number.
63673-58-5Relevant articles and documents
Synthesis of 4-oxopyrimidinium and 4-oxo-1,4-dihydropyrimidines
Vedernikova, Irina V.,Haemers, Achiel,Ryabukhin, Yuryi I.
, p. 97 - 104 (2007/10/03)
The synthesis of N1-substituted 4-pyrimidones is described. These compounds were prepared from their corresponding 4-oxopyrimidinium perchlorates or from a reaction of a primary amine with a N-acyl-β- ketoamide.