115997-99-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 115997-99-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,5,9,9 and 7 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 115997-99:
(8*1)+(7*1)+(6*5)+(5*9)+(4*9)+(3*7)+(2*9)+(1*9)=174
174 % 10 = 4
So 115997-99-4 is a valid CAS Registry Number.
115997-99-4Relevant academic research and scientific papers
Grinev, A. N.,Nesterova, I. N.,Mezentseva, M. V.
, p. 1067 - 1069 (1987)
A new method is proposed for the synthesis of derivatives of indeno-pyrrole-4-ones by intramolecular cyclization of the corresponding 5-(o-carboxyphenyl)pyrroles by trifluoroacetic anhydride.
