157874-97-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 157874-97-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,8,7 and 4 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 157874-97:
(8*1)+(7*5)+(6*7)+(5*8)+(4*7)+(3*4)+(2*9)+(1*7)=190
190 % 10 = 0
So 157874-97-0 is a valid CAS Registry Number.
157874-97-0Relevant academic research and scientific papers
Synthesis and properties of 3-alkylsubstituted 1-alkoxy(hydroxy)indolin-2-ones
Geffken,Frobose
, p. 889 - 893 (2007/10/02)
N-alkoxy-2-aryl-2-hydroxycarboxamides 3 are smoothly converted into 3-alkylsubstituted 1-alkoxyindolin-2-ones (2A) by dicyclohexylcarbodiimide in boiling trichloroethene. The acidolysis of the 1-tert-butoxyindolin-2-ones 2Ab, g, i, k as well as the 1-alko