59457-83-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 59457-83-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,9,4,5 and 7 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 59457-83:
(7*5)+(6*9)+(5*4)+(4*5)+(3*7)+(2*8)+(1*3)=169
169 % 10 = 9
So 59457-83-9 is a valid CAS Registry Number.
59457-83-9Relevant academic research and scientific papers
Pyrrolo[3,4-d]pyrimidines and methods for their preparation
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, (2008/06/13)
Pyrrolo[3,4-d]pyrimidines of the following formula: STR1 wherein: R is hydrogen, (C1-4)alkyl, benzyl or chloro-substituted benzyl; R1 is hydrogen, (C1-4)alkyl, phenyl or phenyl substituted with methyl, ethyl, methoxy, hydr