81890-48-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81890-48-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,8,9 and 0 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 81890-48:
(7*8)+(6*1)+(5*8)+(4*9)+(3*0)+(2*4)+(1*8)=154
154 % 10 = 4
So 81890-48-4 is a valid CAS Registry Number.
81890-48-4Relevant academic research and scientific papers
REACTION OF 4-AMINOIMIDAZOPYRIDIN-2-ONES WITH α-BROMOMETHYLKETONES
Yutilov, Yu. M.,Khabarov, K. M.
, p. 180 - 186 (2007/10/02)
The reactions of 4-amino derivatives of imidazopyridin-2-ones with α-bromomethylketones have been studied.Depending on the nature of the reagents and the reaction conditions, either 5-acylmethyl salts of the starting amine or 2-substituted imidazo
