112723-21-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 112723-21-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,2,7,2 and 3 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 112723-21:
(8*1)+(7*1)+(6*2)+(5*7)+(4*2)+(3*3)+(2*2)+(1*1)=84
84 % 10 = 4
So 112723-21-4 is a valid CAS Registry Number.
112723-21-4Relevant articles and documents
Reaction of Diphenylcyclopropenone with Nitroketeneaminals. Synthesis of 6-Amino-2-pyridones and Their m-Chloroperbenzoic Acid Oxidation to 2,3-Diphenylmaleimides
Takahashi, Masahiko,Nozaki, Chiyoshi,Shibazaki, Yoshio
, p. 1229 - 1232 (2007/10/02)
Reaction of diphenylcyclopropenone wit nitroketeneaminals gave 6-amino-2-pyridones, wich were oxidized by m-chloroperbenzoic acid to 2,3-diphenylmaleimides.