258334-68-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 258334-68-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,8,3,3 and 4 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 258334-68:
(8*2)+(7*5)+(6*8)+(5*3)+(4*3)+(3*4)+(2*6)+(1*8)=158
158 % 10 = 8
So 258334-68-8 is a valid CAS Registry Number.
258334-68-8Relevant articles and documents
Vicarious nucleophilic substitution of hydrogen in 2,4-dinitroanilines and cyanonitroanilines
Makosza,Voskresensky,Bialecki,Kwast
, p. 1969 - 1977 (2007/10/03)
Orientation of the VNS reaction in nitroaniline derivatives is mostly governed by the conjugation between the nitro groups and the amino group, which could be also deprotonated under the reaction conditions.
