117766-95-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117766-95-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,7,6 and 6 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 117766-95:
(8*1)+(7*1)+(6*7)+(5*7)+(4*6)+(3*6)+(2*9)+(1*5)=157
157 % 10 = 7
So 117766-95-7 is a valid CAS Registry Number.
117766-95-7Relevant articles and documents
Synthesis of 1-Aryl-1H-pyrazolecarbonitriles and Related Derivatives
Beck, James R.,Lynch, Michael P.,Wright, Fred L.
, p. 555 - 558 (2007/10/02)
The synthesis of 1-aryl-5-cyano-1H-pyrazole-4-carboxylic acid, ethyl esters 1 is described.Subsequent chemistry led to relatively simple and unique pyrazole derivatives.Most important of these are 1-aryl-5-(aminocarbonyl)-1H-pyrazole-4-carboxylic acids 2,
