1.0 2026-09-22 04:52:47 UTC 2026-09-22 04:52:47 UTC FDB117733 PIRFENIDONE 5-methyl-1-phenyl-pyridin-2-one 5-methyl-1-phenylpyridin-2-one C12H11NO 185.2218 185.084063979 5-methyl-1-phenyl-1,2-dihydropyridin-2-one pirfenidone CC1=CN(C(=O)C=C1)C1=CC=CC=C1 InChI=1S/C12H11NO/c1-10-7-8-12(14)13(9-10)11-5-3-2-4-6-11/h2-9H,1H3 ISWRGOKTTBVCFA-UHFFFAOYSA-N belongs to the class of organic compounds known as pyridinones. Pyridinones are compounds containing a pyridine ring, which bears a ketone. Pyridinones Organic compounds Organoheterocyclic compounds Pyridines and derivatives Hydropyridines Aromatic heteromonocyclic compounds Azacyclic compounds Benzene and substituted derivatives Dihydropyridines Heteroaromatic compounds Hydrocarbon derivatives Lactams Methylpyridines Organic oxides Organonitrogen compounds Organooxygen compounds Organopnictogen compounds Aromatic heteromonocyclic compound Azacycle Benzenoid Dihydropyridine Heteroaromatic compound Hydrocarbon derivative Lactam Methylpyridine Monocyclic benzene moiety Organic nitrogen compound Organic oxide Organic oxygen compound Organonitrogen compound Organooxygen compound Organopnictogen compound Pyridinone pyridone ring assembly logp 2.00 ALOGPS logs -1.81 ALOGPS solubility 2.89e+00 g/l ALOGPS logp 2.14 ChemAxon pka_strongest_basic -1.2 ChemAxon iupac 5-methyl-1-phenyl-1,2-dihydropyridin-2-one ChemAxon average_mass 185.2218 ChemAxon mono_mass 185.084063979 ChemAxon smiles CC1=CN(C(=O)C=C1)C1=CC=CC=C1 ChemAxon formula C12H11NO ChemAxon inchi InChI=1S/C12H11NO/c1-10-7-8-12(14)13(9-10)11-5-3-2-4-6-11/h2-9H,1H3 ChemAxon inchikey ISWRGOKTTBVCFA-UHFFFAOYSA-N ChemAxon polar_surface_area 20.31 ChemAxon refractivity 57 ChemAxon polarizability 20.28 ChemAxon rotatable_bond_count 1 ChemAxon acceptor_count 1 ChemAxon donor_count 0 ChemAxon physiological_charge 0 ChemAxon formal_charge 0 ChemAxon Specdb::CMs 114418 Specdb::CMs 128471 Specdb::NmrOneD 235708 Specdb::NmrOneD 235709 Specdb::NmrOneD 235710 Specdb::NmrOneD 235711 Specdb::NmrOneD 235712 Specdb::NmrOneD 235713 Specdb::NmrOneD 235714 Specdb::NmrOneD 235715 Specdb::NmrOneD 235716 Specdb::NmrOneD 235717 Specdb::NmrOneD 235718 Specdb::NmrOneD 235719 Specdb::NmrOneD 235720 Specdb::NmrOneD 235721 Specdb::NmrOneD 235722 Specdb::NmrOneD 235723 Specdb::NmrOneD 235724 Specdb::NmrOneD 235725 Specdb::NmrOneD 235726 Specdb::NmrOneD 235727 Specdb::MsMs 101658 Specdb::MsMs 101659 Specdb::MsMs 101660 Specdb::MsMs 167313 Specdb::MsMs 167314 Specdb::MsMs 167315 Specdb::MsMs 374784 Specdb::MsMs 451461