52514-77-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 52514-77-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,2,5,1 and 4 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 52514-77:
(7*5)+(6*2)+(5*5)+(4*1)+(3*4)+(2*7)+(1*7)=109
109 % 10 = 9
So 52514-77-9 is a valid CAS Registry Number.
52514-77-9Relevant articles and documents
Quaternary Salts of 2H-Imidazoles
Katritzky, Alan R.,Borja, Susana Bravo,Marquet, Jorge,Sammes, Michael P.
, p. 2065 - 2069 (2007/10/02)
Treatment of the 4,5-diphenyl-2H-imidazoles (1a-e) with alkyl iodides gives novel 1H+,2H-imidazolium salts (2) and (3).The metho-salt (2) N-methyl protons are readily exchanged for deuterium, and anions formed by the action of base give, with m