Synonyms:
4-amino-5-hydroxy-6-[5-[2-(sulfooxy)ethylsulfonyl]-2-methoxyphenylazo]-3-[p-[2-(sulfooxy)ethylsulfonyl]phenylazo]-2,7-naphthalenedisulfonic acid tetrasodium salt ; 4-amino-5-hydroxy-6-[[2-methoxy-5-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-3-[[4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-2,7-naphthalenedisulfonic acid tetrasodium salt ; tetrasodium 4-amino-5-hydroxy-6-[[2-methoxy-5-[[2-(sulphonatooxy)ethyl]sulphonyl]phenyl]azo]-3-[[4-[[2-(sulphonatooxy)ethyl]sulphonyl]phenyl]azo]naphthalene-2,7-disulphonate ; 2,7-naphthalenedisulfonicacid,4-amino-5-hydroxy-6-[[2-methoxy-5-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-3-[[4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-,tetrasodium salt (9ci)