137447-31-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137447-31-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,4,4 and 7 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 137447-31:
(8*1)+(7*3)+(6*7)+(5*4)+(4*4)+(3*7)+(2*3)+(1*1)=135
135 % 10 = 5
So 137447-31-5 is a valid CAS Registry Number.
137447-31-5Relevant academic research and scientific papers
Synthesis of benzodiazepinoperimidine - A new heterocycle
Reddy, V Rama Kishan,Reddy, P S N,Ratnam, C V
, p. 927 - 931 (2007/10/02)
Reaction of 2-(2-aminophenyl)perimidines (3) with chloroacetyl chlorides leads to benzodiazepinoperimidin-6(7H)-ones (5) while reaction with oxalyl chloride leads to the corresponding 6,7-diones (10).Quinazolinoperimidin-6(5H)-ones (4)
