Synonyms: Nickelate(4-),[C-[[(3-amino-4-sulfophenyl)amino]sulfonyl]-29H,31H-phthalocyanine-C,C,C-trisulfonato(6-)-N29,N30,N31,N32]-,tetrasodium; 29H,31H-Phthalocyanine-C,C,C-trisulfonic acid,C-[[(3-amino-4-sulfophenyl)amino]sulfonyl]-, nickel complex