117664-91-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117664-91-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,6,6 and 4 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 117664-91:
(8*1)+(7*1)+(6*7)+(5*6)+(4*6)+(3*4)+(2*9)+(1*1)=142
142 % 10 = 2
So 117664-91-2 is a valid CAS Registry Number.
117664-91-2Relevant academic research and scientific papers
Thiazolidinones, Azetidinones and Formazans of Quinazolinones
Gupta, D. P.,Shanker, K.
, p. 1197 - 1199 (2007/10/02)
6,8-disubstituted 3-aryl-2-bromomethyl-4(3H)-quinazolinones (I) react with hydrazine hydrate and substituted phenylhydrazines to yield 6,8-disubstituted 3-aryl-2-hydrazinomethyl-4(3H)-quinazolinone (III) and 6,8-disubstituted 3-aryl-2-(N2-aryl-
