133116-97-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133116-97-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,1,1 and 6 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 133116-97:
(8*1)+(7*3)+(6*3)+(5*1)+(4*1)+(3*6)+(2*9)+(1*7)=99
99 % 10 = 9
So 133116-97-9 is a valid CAS Registry Number.
133116-97-9Relevant academic research and scientific papers
A Facile and Novel Synthesis of 1,6-Naphthyridin-2(1H)-ones
Singh, Baldev,Lesher, George Y.
, p. 2085 - 2091 (2007/10/02)
A new and convenient procedure for the synthesis of 1,6-naphthyridin-2(1H)-ones and their derivatives is described.In the first scheme 5-acetyl-6--1,2-dihydro-2-oxo-3-pyridinecarbonitrile (4) obtained by the reaction of N,N-dimet
