Synonyms: Cobalt,[tetrahydrogen phthalocyaninetetrasulfonato(2-)]- (7CI,8CI); Cobaltate(4-),[29H,31H-phthalocyanine-C,C,C,C-tetrasulfonato(6-)-N29,N30,N31,N32]-,tetrahydrogen; Cobaltate(4-),[29H,31H-phthalocyanine-C,C,C,C-tetrasulfonato(6-)-kN29,kN30,kN31,kN32]-, tetrahydrogen (9CI); 29H,31H-Phthalocyanine-C,C,C,C-tetrasulfonicacid, cobalt complex; Cobalt phthalocyanine tetrasulfonate; Cobalttetrasulfophthalocyanine; DX 3081