186959-31-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 186959-31-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,6,9,5 and 9 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 186959-31:
(8*1)+(7*8)+(6*6)+(5*9)+(4*5)+(3*9)+(2*3)+(1*1)=199
199 % 10 = 9
So 186959-31-9 is a valid CAS Registry Number.
186959-31-9Relevant academic research and scientific papers
Synthesis of 2,4-Dimethylthiobenzonaphthyridin-5(6H)-one: A Potentially Useful Intermediate for the Synthesis of Pyridoacridine Alkaloids
Simth, Kenneth L.,Ray, Partha S.
, p. 11 - 14 (2007/10/03)
Synthesis of the titled benzonaphthyridinone (1) is described using intramolecular inverse electron demand Diels-Alder chemistry of 1,2,4-triazines (10) and (11).
