cinmetacin 349.131 349.381 C(C(O)=O)C=1C2=C(N(C1C)C(/C=C/C3=CC=CC=C3)=O)C=CC(=C2)OC C21H19NO4 CAS:20168-99-4 CHEBI:135478 Drug_Central:3711 InChI=1S/C21H19NO4/c1-14-17(13-21(24)25)18-12-16(26-2)9-10-19(18)22(14)20(23)11-8-15-6-4-3-5-7-15/h3-12H,13H2,1-2H3,(H,24,25)/b11-8+ NKPPORKKCMYYTO-DHZHZOJOSA-N chebi_ontology cindomet cinmethacin indolacin indole-3-acetic acids