1.0 2026-09-22 01:22:27 UTC 2026-09-22 01:22:27 UTC FDB117474 (-)-Synephrine 4-[(1R)-1-hydroxy-2-(methylamino)ethyl]phenol C9H13NO2 167.208 167.094628663 4-[(1R)-1-hydroxy-2-(methylamino)ethyl]phenol ( )-synephrine CNC[C@H](O)C1=CC=C(O)C=C1 InChI=1S/C9H13NO2/c1-10-6-9(12)7-2-4-8(11)5-3-7/h2-5,9-12H,6H2,1H3/t9-/m0/s1 YRCWQPVGYLYSOX-VIFPVBQESA-N belongs to the class of organic compounds known as 1-hydroxy-2-unsubstituted benzenoids. These are phenols that are unsubstituted at the 2-position. 1-hydroxy-2-unsubstituted benzenoids Organic compounds Benzenoids Phenols 1-hydroxy-2-unsubstituted benzenoids Aromatic homomonocyclic compounds 1,2-aminoalcohols Aralkylamines Aromatic alcohols Benzene and substituted derivatives Dialkylamines Hydrocarbon derivatives Organopnictogen compounds Secondary alcohols 1,2-aminoalcohol 1-hydroxy-2-unsubstituted benzenoid Alcohol Amine Aralkylamine Aromatic alcohol Aromatic homomonocyclic compound Hydrocarbon derivative Monocyclic benzene moiety Organic nitrogen compound Organic oxygen compound Organonitrogen compound Organooxygen compound Organopnictogen compound Secondary alcohol Secondary aliphatic amine Secondary amine synephrine logp -0.62 ALOGPS logs -0.95 ALOGPS solubility 1.86e+01 g/l ALOGPS logp -0.071 ChemAxon pka_strongest_acidic 9.76 ChemAxon pka_strongest_basic 9.15 ChemAxon iupac 4-[(1R)-1-hydroxy-2-(methylamino)ethyl]phenol ChemAxon average_mass 167.208 ChemAxon mono_mass 167.094628663 ChemAxon smiles CNC[C@H](O)C1=CC=C(O)C=C1 ChemAxon formula C9H13NO2 ChemAxon inchi InChI=1S/C9H13NO2/c1-10-6-9(12)7-2-4-8(11)5-3-7/h2-5,9-12H,6H2,1H3/t9-/m0/s1 ChemAxon inchikey YRCWQPVGYLYSOX-VIFPVBQESA-N ChemAxon polar_surface_area 52.49 ChemAxon refractivity 47.25 ChemAxon polarizability 18.25 ChemAxon rotatable_bond_count 3 ChemAxon acceptor_count 3 ChemAxon donor_count 3 ChemAxon physiological_charge 1 ChemAxon formal_charge 0 ChemAxon Specdb::CMs 35547 Specdb::CMs 49064 Specdb::CMs 133107 Specdb::CMs 140841 Specdb::MsMs 904114 Specdb::MsMs 904115 Specdb::MsMs 904116 Specdb::MsMs 949711 Specdb::MsMs 949712 Specdb::MsMs 949713 Specdb::MsMs 2795276 Specdb::MsMs 2795277 Specdb::MsMs 2795278 Specdb::MsMs 2886371 Specdb::MsMs 2886372 Specdb::MsMs 2886373 Specdb::NmrOneD 69872 Specdb::NmrOneD 69873 Specdb::NmrOneD 69874 Specdb::NmrOneD 69875 Specdb::NmrOneD 69876 Specdb::NmrOneD 69877 Specdb::NmrOneD 69878 Specdb::NmrOneD 69879 Specdb::NmrOneD 69880 Specdb::NmrOneD 69881 Specdb::NmrOneD 69882 Specdb::NmrOneD 69883 Specdb::NmrOneD 69884 Specdb::NmrOneD 69885 Specdb::NmrOneD 69886 Specdb::NmrOneD 69887 Specdb::NmrOneD 69888 Specdb::NmrOneD 69889 Specdb::NmrOneD 69890 Specdb::NmrOneD 69891