225217-59-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 225217-59-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,5,2,1 and 7 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 225217-59:
(8*2)+(7*2)+(6*5)+(5*2)+(4*1)+(3*7)+(2*5)+(1*9)=114
114 % 10 = 4
So 225217-59-4 is a valid CAS Registry Number.
225217-59-4Relevant academic research and scientific papers
A SYNTHESIS OF 1,2,3,4-TETRAHYDRO-1,6-NAPHTHYRIDINES
Victory, Pedro J.,Teixido, Jordi,Borrell, Jose I.
, p. 1905 - 1916 (2007/10/02)
8-Cyano-3,4-dihydro-1,6-naphthyridin-2(1H)-ones were obtained by nucleophilic substitution of the methoxyl group of 5-cyano-3,4-dihydro-6-methoxy-2(1H)-pyridones (5a-d) by malononitrile or cyanoacetamide followed by cyclization in acidic or basic medium.
