Synonyms: Palladium,[2,3,7,8,12,13,17,18-octaethyl-21H,23H-porphinato(2-)-N21,N22,N23,N24]-,(SP-4-1)-; Palladium, [2,3,7,8,12,13,17,18-octaethylporphinato(2-)]- (8CI);21H,23H-Porphine, 2,3,7,8,12,13,17,18-octaethyl-, palladium complex;(2,3,7,8,12,13,17,18-Octaethylporphyrinato)palladium;(Octaethylporphyrinato)palladium; Octaethylporphinatopalladium; Palladiumoctaethylporphyrin; Palladium(2+) octaethylporphyrin; Palladium(II)octaethylporphyrin; Palladium-octaethylporphine; PdOEP