sodium 4-chloro-3-[4-[[2-[(2-chlorophenoxy)sulphonyl]phenyl]azo]-2,5-dihydro-5-imino-3-methyl-1H-pyrazol-1-yl]benzenesulphonate

4-Chloro-3-[[4-[2-(2-chlorophenoxysulfonyl)phenylazo]-2,5-dihydro-5-imino-3-methyl-1H-pyrazol]-1-yl]benzenesulfonic acid sodium salt

Benzenesulfonic acid, 4-chloro-3-4-2-(2-chlorophenoxy)sulfonylphenylazo-2,5-dihydro-5-imino-3-methyl-1H-pyrazol-1-yl-, monosodium salt