70890-23-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 70890-23-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,8,9 and 0 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 70890-23:
(7*7)+(6*0)+(5*8)+(4*9)+(3*0)+(2*2)+(1*3)=132
132 % 10 = 2
So 70890-23-2 is a valid CAS Registry Number.
70890-23-2Relevant articles and documents
N-AROYLDICHLOROSELENIMIDES
Derkach, N. Ya.,Krasnyanskaya, T. V.,Levchenko, E. S.,Zabolotnaya, T. G.
, p. 2167 - 2171 (2007/10/02)
N-Aroyldichloroselenimides were obtained in the reaction of selenium with N,N-dichloroaroylamines.The products react with olefins by a mechanism of the -cycloaddition type with the formation of substituted 4,4-dichloro-5,6-dihydro-4,1,3-selenaoxazines.