34931-72-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 34931-72-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,4,9,3 and 1 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 34931-72:
(7*3)+(6*4)+(5*9)+(4*3)+(3*1)+(2*7)+(1*2)=121
121 % 10 = 1
So 34931-72-1 is a valid CAS Registry Number.
34931-72-1Relevant academic research and scientific papers
Process for the preparation of pyridopyrimidones
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Page/Page column 4, (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.
