859174-12-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 859174-12-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,9,1,7 and 4 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 859174-12:
(8*8)+(7*5)+(6*9)+(5*1)+(4*7)+(3*4)+(2*1)+(1*2)=202
202 % 10 = 2
So 859174-12-2 is a valid CAS Registry Number.
859174-12-2Relevant articles and documents
Process for the preparation of pyridopyrimidones
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Page/Page column 2-3; 5, (2010/02/13)
The present invention is directed to a process for making 2-substituted pyridopyrimidones. In particular, 2-substituted pyridopyrimidones are made through the single step reaction of suitable acid derivatives with desired derivatives of amidines.