difenpiramide difenpiramide difenpiramide is a non-steroidal anti-inflammatory drug. difenpiramideclinical dataatc codem01ab12 (who) identifiers iupac name 2-(4-phenylphenyl)-n-pyridin-2-ylacetamide cas number51484-40-3 ypubchem cid100472chemspider90781 nuniiq6u5f6e1qlchebichebi:76130 nchemblchembl1489662 ncomptox dashboard (epa)dtxsid10199459 echa infocard100.052.015 chemical and physical dataformulac19h16n2omolar mass288.350 g·mol−13d model (jsmol)interactive image smiles o=c(nc1ncccc1)cc3ccc(c2ccccc2)cc3 inchi inchi=1s/c19h16n2o/c22-19(21-18-8-4-5-13-20-18)14-15-9-11-17(12-10-15)16-6-2-1-3-7-16/h1-13h,14h2,(h,20,21,22) nkey:pwhroykagruwdq-uhfffaoysa-n n ny (what is this?) (verify)