138589-93-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138589-93-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,5,8 and 9 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 138589-93:
(8*1)+(7*3)+(6*8)+(5*5)+(4*8)+(3*9)+(2*9)+(1*3)=182
182 % 10 = 2
So 138589-93-2 is a valid CAS Registry Number.
138589-93-2Relevant academic research and scientific papers
Synthesis of 4,8-Disubstituted 4H,8H-Bisoxadiazolopyrazines
Fischer, John W.,Nissan, Robin A.,Lowe-Ma, Charlotte K.
, p. 1677 - 1681 (2007/10/02)
The dilithio anion of 3,4-N,N'-disubstituted diaminooxadiazole (4a R = benzyl, 4b R = p-methoxybenzyl, 4c R = isopropyl) and cyanogen oxide gave 4,7-disubstituted 5,6-dioximinooxadiazolopyrazines 5a,b,c.Ring closure to the title compo
