1.0 2010-04-08 22:06:14 UTC 2025-11-18 22:56:15 UTC FDB004424 4-Methylpyridine 4-methylpyridine, also known as 4-mepy or 4-picoline, 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. 4-methylpyridine is soluble (in water) and a very strong basic compound (based on its pKa). 4-methylpyridine can be found in fig and tea, which makes 4-methylpyridine a potential biomarker for the consumption of these food products. 4-methylpyridine is the organic compound with the formula CH3C5H4N. It is one of the three isomers of methylpyridine. This pungent liquid is a building block for the synthesis of other heterocyclic compounds. Its conjugate acid, the 4-methylpyridinium ion, has a pKa of 5.98, about 0.7 units above that of pyridine itself . «gamma»-methylpyridine «gamma»-picoline 4-Mepy 4-METHYL-PYRIDINE (GAMMA-PICOLINE) 4-Methylpyridine 4-Picoline 4-Picoline (8CI) 4-Pyridylmethyl 4-Pyridylmethyl chloride G-picoline Gamma-methylpyridine Gamma-picoline Methyl, 4-pyridinyl- P-methylpyridine P-picoline p-Picoline [UN2313] [Flammable liquid] Para-methylpyridine Pyridine, 4-methyl- C6H7N 93.1265 93.057849229 4-methylpyridine 4-methylpyridine 108-89-4 CC1=CC=NC=C1 InChI=1S/C6H7N/c1-6-2-4-7-5-3-6/h2-5H,1H3 FKNQCJSGGFJEIZ-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 1.14 ALOGPS logs 0.32 ALOGPS solubility 1.95e+02 g/l ALOGPS melting_point 3.66 oC logp 1.27 ChemAxon pka_strongest_basic 5.85 ChemAxon iupac 4-methylpyridine ChemAxon average_mass 93.1265 ChemAxon mono_mass 93.057849229 ChemAxon smiles CC1=CC=NC=C1 ChemAxon formula C6H7N ChemAxon inchi InChI=1S/C6H7N/c1-6-2-4-7-5-3-6/h2-5H,1H3 ChemAxon inchikey FKNQCJSGGFJEIZ-UHFFFAOYSA-N ChemAxon polar_surface_area 12.89 ChemAxon refractivity 28.94 ChemAxon polarizability 10.3 ChemAxon rotatable_bond_count 0 ChemAxon acceptor_count 1 ChemAxon donor_count 0 ChemAxon physiological_charge 0 ChemAxon formal_charge 0 ChemAxon Specdb::MsMs 75669 Specdb::MsMs 75670 Specdb::MsMs 75671 Specdb::MsMs 135351 Specdb::MsMs 135352 Specdb::MsMs 135353 Specdb::MsMs 1473239 Specdb::MsMs 1473240 Specdb::MsMs 1473241 Specdb::MsMs 1474906 Specdb::MsMs 1474907 Specdb::MsMs 1474908 Specdb::MsMs 1474909 Specdb::MsMs 3600494 Specdb::MsMs 3600495 Specdb::MsMs 3600496 Specdb::MsMs 3600497 Specdb::MsMs 3600498 Specdb::MsMs 3600499 32547 Black tea Type 1 Common beet Type 1 specific Beta vulgaris 161934 Corn Type 1 specific Zea mays 4577 Fig Type 1 specific Ficus carica 3494 Green tea Type 1 Herbal tea Type 1 Red tea Type 1 Tea Type 1 specific Camellia sinensis 4442