426264-81-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 426264-81-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,2,6,2,6 and 4 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 426264-81:
(8*4)+(7*2)+(6*6)+(5*2)+(4*6)+(3*4)+(2*8)+(1*1)=145
145 % 10 = 5
So 426264-81-5 is a valid CAS Registry Number.
426264-81-5Relevant articles and documents
N-Acylation of amides with acid anhydrides by way of dual activation using MgBr2·OEt2
Yamada, Shinji,Yaguchi, Setsuko,Matsuda, Kaori
, p. 647 - 651 (2002)
A new practical method for the N-acylation of amides is described. Acylation of various amides with acid anhydrides in the presence of MgBr2·OEt2 gave the corresponding N-acylamides in good to moderate yields. The present method is a