771457-99-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 771457-99-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,7,1,4,5 and 7 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 771457-99:
(8*7)+(7*7)+(6*1)+(5*4)+(4*5)+(3*7)+(2*9)+(1*9)=199
199 % 10 = 9
So 771457-99-9 is a valid CAS Registry Number.
771457-99-9Relevant academic research and scientific papers
Aniline derivatives, their manufacture and use as pharmaceuticals
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Page 13, (2010/02/09)
This invention relates to compounds of the formula wherein X is N and Y is S or O; or X is S or O and Y is N; R1 is hydrogen or C1-7-alkyl; R2 and R3 independently from each other are selected from the group con