2-[[4-chloro-6-isopropoxy-1,3,5-triazin-2-yl]amino]-5-[[1-ethyl-1,6-dihydro-2-hydroxy-4-methyl-6-oxo-5-(sulphomethyl)-3-pyridyl]azo]-benzene-1,4-disulphonic acid

2-[[4-Chloro-6-(1-methylethoxy)-1,3,5-triazin-2-yl]amino]-5-[[[1-ethyl-1,6-dihydro-2-hydroxy-4-methyl-6-oxo-5-(sulfomethyl)pyridin]-3-yl]azo]-1,4-benzenedisulfonic acid