1.0 2010-04-08 22:06:14 UTC 2025-11-18 22:56:11 UTC FDB004416 3-Methylpyridine 3-methylpyridine, also known as 3-picoline or 3-mepy, is a member of the class of compounds known as methylpyridines. Methylpyridines are organic compounds containing a pyridine ring substituted at one or more positions by a methyl group. 3-methylpyridine is soluble (in water) and a very strong basic compound (based on its pKa). 3-methylpyridine can be found in sweet orange and tea, which makes 3-methylpyridine a potential biomarker for the consumption of these food products. 3-methylpyridine can be found primarily in saliva. 3-Methylpyridine or 3-picoline, is an organic compound with formula 3-CH3C5H4N. It is one of three positional isomers of methylpyridine, whose structures vary according to where the methyl group is attached around the pyridine ring. This colorless liquid is a precursor to pyridine derivatives that have applications in the pharmaceutical and agricultural industries. Like pyridine, 3-methylpyridine is a colorless liquid with a strong odor and is classified as a weak base . β-methylpyridine β-picoline 3-Mepy 3-Methyl pyridine 3-Methylpyridine 3-Picoline 3-Pyridylmethyl radical 5-Methylpyridine B-picoline Beta-methylpyridine Beta-picoline M-methylpyridine M-picoline m-Picoline [UN2313] [Flammable liquid] Meta-methylpyridine Pyridine, 3-methyl- C6H7N 93.1265 93.057849229 3-methylpyridine 3-methylpyridine 108-99-6 CC1=CC=CN=C1 InChI=1S/C6H7N/c1-6-3-2-4-7-5-6/h2-5H,1H3 ITQTTZVARXURQS-UHFFFAOYSA-N belongs to the class of organic compounds known as methylpyridines. These are organic compounds containing a pyridine ring substituted at one or more positions by a methyl group. Methylpyridines Organic compounds Organoheterocyclic compounds Pyridines and derivatives Methylpyridines Aromatic heteromonocyclic compounds Azacyclic compounds Heteroaromatic compounds Hydrocarbon derivatives Organonitrogen compounds Organopnictogen compounds Aromatic heteromonocyclic compound Azacycle Heteroaromatic compound Hydrocarbon derivative Methylpyridine Organic nitrogen compound Organonitrogen compound Organopnictogen compound methylpyridine liquid logp 1.11 ALOGPS logs 0.33 ALOGPS solubility 1.97e+02 g/l ALOGPS melting_point -18.1 oC logp 1.27 ChemAxon pka_strongest_basic 5.63 ChemAxon iupac 3-methylpyridine ChemAxon average_mass 93.1265 ChemAxon mono_mass 93.057849229 ChemAxon smiles CC1=CC=CN=C1 ChemAxon formula C6H7N ChemAxon inchi InChI=1S/C6H7N/c1-6-3-2-4-7-5-6/h2-5H,1H3 ChemAxon inchikey ITQTTZVARXURQS-UHFFFAOYSA-N ChemAxon polar_surface_area 12.89 ChemAxon refractivity 28.94 ChemAxon polarizability 10.31 ChemAxon rotatable_bond_count 0 ChemAxon acceptor_count 1 ChemAxon donor_count 0 ChemAxon physiological_charge 0 ChemAxon formal_charge 0 ChemAxon Specdb::MsIr 10337 Specdb::CMs 27119 Specdb::CMs 27651 Specdb::CMs 27874 Specdb::CMs 29389 Specdb::CMs 29569 Specdb::CMs 34377 Specdb::CMs 102490 Specdb::CMs 102491 Specdb::CMs 102492 Specdb::CMs 102493 Specdb::CMs 102494 Specdb::CMs 159382 Specdb::MsMs 12338 Specdb::MsMs 12339 Specdb::MsMs 12340 Specdb::MsMs 19010 Specdb::MsMs 19011 Specdb::MsMs 19012 Specdb::MsMs 2229675 Specdb::MsMs 2229792 Specdb::MsMs 2231989 Specdb::MsMs 2232226 Specdb::MsMs 2234388 Specdb::MsMs 2234533 Specdb::MsMs 2430763 Specdb::MsMs 2430764 Specdb::MsMs 2430765 Specdb::MsMs 2508931 Specdb::MsMs 2508932 Specdb::MsMs 2508933 HMDB0061887 32546 Black tea Type 1 Green tea Type 1 Herbal tea Type 1 Red tea Type 1 Sweet orange Type 1 specific Citrus sinensis 2711 Tea Type 1 specific Camellia sinensis 4442