Synonyms: Copper, (29H,31H-phthalocyaninato(2-)-kappaN29,kappaN30,kappaN31,kappaN32)-, sulfonated, sodium salts;Copper phthalocyanine, sulfonated, sodium salt;Copper phthalocyanine, sulfonated, sodium salts;Copper, (29H,31H-phthalocyaninato(2-)-N29,N30,N31,N32)-, sulfonated, sodium salts