81259-45-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81259-45-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,2,5 and 9 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 81259-45:
(7*8)+(6*1)+(5*2)+(4*5)+(3*9)+(2*4)+(1*5)=132
132 % 10 = 2
So 81259-45-2 is a valid CAS Registry Number.
81259-45-2Relevant academic research and scientific papers
About Ringtransformation of 5-Acetonyl-2-amino-1,3,4-oxadiazoles
Rabe, Harald,Westphal, Guenter
, p. 965 - 971 (2007/10/02)
Treatment of 1 with hydrazine derivatives gives first of all the 5-acetonyl-2-amino-1,3,4-oxadiazole-hydrazones 2 which can be isolated partially.In the second reaction step ringtransformation to the pyrazoles 3 takes place.Hydroxylamine reacts in the sam
