5227-56-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5227-56-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,2,2 and 7 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 5227-56:
(6*5)+(5*2)+(4*2)+(3*7)+(2*5)+(1*6)=85
85 % 10 = 5
So 5227-56-5 is a valid CAS Registry Number.
InChI:InChI=1/C20H14N2O2/c23-21-17-13-7-8-14-18(17)22(24)20(16-11-5-2-6-12-16)19(21)15-9-3-1-4-10-15/h1-14H
5227-56-5Relevant articles and documents
A new efficient route for the formation of quinoxaline N-oxides and N,N′-dioxides using HOF·CH3CN
Carmeli, Mira,Rozen, Shlomo
, p. 5761 - 5765 (2007/10/03)
HOF·CH3CN, a very efficient oxygen-transfer agent made readily from fluorine and aqueous acetonitrile, was reacted with various quinoxaline derivatives to give the corresponding mono N-oxides and especially the N,N′-dioxides in very good yields under mild conditions and short reaction times.