426815-76-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 426815-76-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,2,6,8,1 and 5 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 426815-76:
(8*4)+(7*2)+(6*6)+(5*8)+(4*1)+(3*5)+(2*7)+(1*6)=161
161 % 10 = 1
So 426815-76-1 is a valid CAS Registry Number.
426815-76-1Relevant articles and documents
Synthesis of some isomeric quinoxaline derivatives with 6-azauracil cycle [1]
Wiedermannova, Iveta,Slouka, Jan
, p. 1465 - 1468 (2001)
By diazotization of 3-(2-aminophenyl)-1,2-dihydroquinoxaline 1c, its 3-(4-aminophenyl)-isomer 2c, 3-(2-aminobenzyl)-1,2-dihydroquinoxaline-2-one 3c and its 3-(4-aminobenzyl)-isomer 4c and by azo coupling of formed diazonium salts with ethyl cyanoacetylcar