111977-80-1 | Cuprate(4-),[5-(acetylamino)-4-hydroxy-3-[2-[5-(hydroxy-kO)-6-[2-[2-(hydroxy-kO)-5-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]diazenyl-kN1]-7-sulfo-2-naphthalenyl]diazenyl]-2,7-naphthalenedisulfonato(6-)]-,sodium (1:4) | C30H19 Cu N5 O19 S5 . 4 Na |