Synonyms: Phthalocyaninetetrasulfonicacid, zinc deriv. (6CI); Zinc, [tetrahydrogenphthalocyaninetetrasulfonato(2-)]- (7CI); Zincate(4-),[29H,31H-phthalocyanine-C,C,C,C-tetrasulfonato(6-)-N29,N30,N31,N32]-,tetrahydrogen; Zincate(4-), [29H,31H-phthalocyanine-C,C,C,C-tetrasulfonato(6-)-kN29,kN30,kN31,kN32]-, tetrahydrogen (9CI);29H,31H-Phthalocyanine-C,C,C,C-tetrasulfonic acid, zinc complex; Zincphthalocyanine tetrasulfonate; Zinc tetrasulfonatophthalocyanine(4-); Zinctetrasulfophthalocyanine