Copper,[N2,N16-dibutyl-N9,N23-bis(2-ethylhexyl)-29H,31H-phthalocyanine-2,9,16,23-tetrasulfonamidato(2-)-N29,N30,N31,N32]-,(SP-4-1)-; 29H,31H-Phthalocyanine-2,9,16,23-tetrasulfonamide,N2,N16-dibutyl-N9,N23-bis(2-ethylhexyl)-, copper complex
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