1146577-73-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1146577-73-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,4,6,5,7 and 7 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1146577-73:
(9*1)+(8*1)+(7*4)+(6*6)+(5*5)+(4*7)+(3*7)+(2*7)+(1*3)=172
172 % 10 = 2
So 1146577-73-2 is a valid CAS Registry Number.
1146577-73-2Relevant articles and documents
Positional isomers of thienopyrimidinones
Kucherenko,Zadorozhny,Kovtunenko
experimental part, p. 750 - 758 (2009/04/06)
Condensation of o-cyanomethylbenzoic acids with esters of 2-aminothiophene-3-carboxylic and 3-amino-thiophene-2-carboxylic acids to give isomeric 2-(4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-ylmethyl)-benzoic acids and their ethyl and phenacyl esters. Met