1158978-36-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1158978-36-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,5,8,9,7 and 8 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1158978-36:
(9*1)+(8*1)+(7*5)+(6*8)+(5*9)+(4*7)+(3*8)+(2*3)+(1*6)=209
209 % 10 = 9
So 1158978-36-9 is a valid CAS Registry Number.
1158978-36-9Relevant academic research and scientific papers
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
