Also Called: Cuprate(4-), [29H,31H-phthalocyanine-2, 9,16,24-tetrasulfonato(6-)-N29,N30,N31 ,N32]-, tetrasodium, (SP-4-2)-;Cuprate(4-), [29H,31H-phthalocyanine-2,9,16,24-tetrasulfonato(6-)-N²9,N³0,N³¹,N³²]-, tetrasodium, (SP-4-2)-;Cuprate(4-), [29H,31H-phthalocyanine-2,9,16,24-tetrasulfonato(6-)-.kappa.N29,.kappa.N30,.kappa.N31,.kappa.N32]-, sodium (1:4), (SP-4-2)-