Ivacaftor Impurity 9

Chemical Name: 4-Oxo-1,4-dihydroquinoline-3-carboxylic acid

Smiles: O=C1C2=CC=CC=C2NC=C1C(O)=O

Inchi: InChI=1/C12H16N2O2/c1-8-3-9(2)5-11(4-8)16-7-10-6-13-12(15)14-10/h3-5,10H,6-7H2,1-2H3,(H2,13,14,15)