7-[[4-[[4-[[7-(Acetylamino)-1-hydroxy-3-sulfo-2-naphthalenyl]azo]-1-naphthalenyl]azo]-6-sulfo-1-naphthalenyl]azo]-1,3-naphthalenedisulfonic acid tetrasodium salt
71873-48-8 7-[[4-[[4-[[7-(Acetylamino)-1-hydroxy-3-sulfo-2-naphthalenyl]azo]-1-naphthalenyl]azo]-6-sulfo-1-naphthalenyl]azo]-1,3-naphthalenedisulfonic acid tetrasodium salt