C.I.24155

C.I.Direct Blue 9

Direct blue 9 (C.I. 24155)

3-Hydroxy-4-[[4'-[(1-hydroxy-4-sulfo-2-naphtyl)azo]-3,3'-dimethoxy-1,1'-biphenyl-4-yl]azo]-2,7-naphthalenedisulfonic acid trisodium salt