1220957-75-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1220957-75-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,0,9,5 and 7 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1220957-75:
(9*1)+(8*2)+(7*2)+(6*0)+(5*9)+(4*5)+(3*7)+(2*7)+(1*5)=144
144 % 10 = 4
So 1220957-75-4 is a valid CAS Registry Number.
1220957-75-4Relevant articles and documents
Synthesis and properties of Z-1, 3-bis- (aryl)-4-bromo-2-buten-1-ones
Potikha,Turelik,Kovtunenko
experimental part, p. 1184 - 1189 (2010/05/18)
Bromination of 1, 3-bis(aryl)-2-buten-1-ones by N-bromosuccinimide in anhydrous carbon tetrachloride gives Z-1, 3-bis(aryl)-4-bromo-2-buten-1-ones. The effect of the nature of substituent in the benzene ring on the course of a reaction with nucleophiles h
