disodium 5-[[2,4-dihydroxy-5-[(2-hydroxy-3,5-dinitrophenyl)azo]phenyl]azo]-4-hydroxy-3-[(4-nitrophenyl)azo]naphthalene-2,7-disulphonate
C.I.酸性棕191(第二组成部分)
CAS No: 70210-25-2
disodium,dihydroxy,hydroxy,dinitrophenyl,phenyl,nitrophenyl,naphthalene,disulphonate