Synonyms: Magnesium,[29H,31H-phthalocyaninato(2-)-N29,N30,N31,N32]-, (SP-4-1)-; Magnesium, [phthalocyaninato(2-)]-(8CI); Phthalocyanine, magnesium deriv. (6CI); 29H,31H-Phthalocyanine,magnesium complex; Magnesium phthalocyanin; Magnesium phthalocyaninate;Magnesium phthalocyanine; Phthalocyaninatomagnesium;[Phthalocyaninato(2-)]magnesium