trisodium 3-[[2-(acetylamino)-4-[[4-chloro-6-[(4-sulphonatophenyl)amino]-1,3,5-triazin-2-yl]amino]phenyl]azo]naphthalene-1,5-disulphonate

3-[[2-Acetylamino-4-[[4-chloro-6-[(4-sodiooxysulfonylphenyl)amino]-1,3,5-triazin-2-yl]amino]phenyl]azo]-1,5-naphthalenedisulfonic acid disodium salt