71566-25-1 Copper, (N2,N16-dibutyl-N9,N23-bis(2-ethylhexyl)-29H,31H-phthalocyanine-2,9,16,23-tetrasulfonamidato(2-)-N29,N39,N31,N32)-, (SP-4-1)- Copper, (N2,N16-dibutyl-N9,N23-bis(2-ethylhexyl)-29H,31H-phthalocyanine-2,9,16,23-tetrasulfonamidato(2-)-kappaN29,kappaN30,kappaN31,kappaN32)-, (SP-4-1)-