55831-25-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55831-25-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,8,3 and 1 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 55831-25:
(7*5)+(6*5)+(5*8)+(4*3)+(3*1)+(2*2)+(1*5)=129
129 % 10 = 9
So 55831-25-9 is a valid CAS Registry Number.
55831-25-9Relevant articles and documents
A NOVEL SYNTHESIS OF HALOKETENIMINE
Hirao, Toshikazu,Hayashi, Ken-ichiro,Motoyoshiya, Jiro,Ohshiro, Yoshiki,Agawa, Toshio
, p. 1197 - 1198 (1981)
Haloketenimines are prepared by treatment of 2,2-dihaloaziridines with triethylamine in acetonitrile.