259191-64-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 259191-64-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,9,1,9 and 1 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 259191-64:
(8*2)+(7*5)+(6*9)+(5*1)+(4*9)+(3*1)+(2*6)+(1*4)=165
165 % 10 = 5
So 259191-64-5 is a valid CAS Registry Number.
259191-64-5Relevant academic research and scientific papers
Dihydro-[1,2,3]triazolo-[4,5-d]pyrimidin-7-one
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, (2008/06/13)
The present invention relates to novel dihydro-[1,2,3]triazolo-[4,5-d]pyrimidin-7-one, to processes for their preparation and to their use as medicaments, in particular as inhibitors of cGMP-metabolizing phosphodiesterases.
