99233-97-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99233-97-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,2,3 and 3 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 99233-97:
(7*9)+(6*9)+(5*2)+(4*3)+(3*3)+(2*9)+(1*7)=173
173 % 10 = 3
So 99233-97-3 is a valid CAS Registry Number.
99233-97-3Relevant articles and documents
12-Organyldibenzazocine-5,7-diones
Hellwinkel, Dieter,Ittemann, Peter
, p. 3165 - 3197 (2007/10/02)
The title compounds 10, 23 are formed in low yields on treatment of 2,2'-organylimino-bisbenzoic acid esters 8 with methyllithium, but in high yields in the intramolecular ester condensation with sodium hydride of triarylamines 12, containing o-acetyl-, a
