111289-53-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 111289-53-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,2,8 and 9 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 111289-53:
(8*1)+(7*1)+(6*1)+(5*2)+(4*8)+(3*9)+(2*5)+(1*3)=103
103 % 10 = 3
So 111289-53-3 is a valid CAS Registry Number.
111289-53-3Relevant articles and documents
A NOVEL RING FORMATION OF 1,2-DIHYDROQUINOXALINES
Murata, Shizuaki,Sugimoto, Takashi,Matsuura, Sadao
, p. 883 - 884 (2007/10/02)
Reaction of o-phenylenediamine with 2,3-epoxyaldehydes gives 2-hydroxyalkyl-1,2-dihydroquinoxalines, while the reaction with 2,3-epoxyesters gives either dihydroquinoxaline derivative or the uncyclized hydroxyamino ester.