159180-93-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 159180-93-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,9,1,8 and 0 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 159180-93:
(8*1)+(7*5)+(6*9)+(5*1)+(4*8)+(3*0)+(2*9)+(1*3)=155
155 % 10 = 5
So 159180-93-5 is a valid CAS Registry Number.
159180-93-5Relevant 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.
