title: Ionization of methyl derivatives of imidazole, histidine, thyreotropin releasing factor, and related compounds.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D006639:Histidine / Q000031:analogs & derivatives; D007093:Imidazoles; D007477:Ions; D008762:Methylhistidines; D013696:Temperature; D013973:Thyrotropin-Releasing Hormone
chemical_list: D007093:Imidazoles; D007477:Ions; D008762:Methylhistidines; D006639:Histidine; D013973:Thyrotropin-Releasing Hormone