93572-97-5 Cuprate(4-), (5-amino-4-hydroxy-3-((5-hydroxy-6-((2-hydroxy-4-((2-(sulfooxy)ethyl)sulfonyl)phenyl)azo)-7-sulfo-2-naphthalenyl)azo)-2,7-naphthalenedisulfonato(6-))-, sodium EINECS 297-529-4