74912-83-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74912-83-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,9,1 and 2 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 74912-83:
(7*7)+(6*4)+(5*9)+(4*1)+(3*2)+(2*8)+(1*3)=147
147 % 10 = 7
So 74912-83-7 is a valid CAS Registry Number.
74912-83-7Relevant articles and documents
(2-QUINOXALINON-3-YL)GLYOXAL DERIVATIVES FROM L-ASCORBIC ACID
Ashry, El Sayed H. El,Nassr, Mahmoud M.,Shoukry, Mahmoud
, p. 79 - 84 (2007/10/02)
Reaction of dehydro-L-ascorbic acid with o-phenylenediamine, followed by aroylhydrazines, gave 3--2-quinoxalinones which, upon periodate oxidation, gave 3--2-quinoxalinones.