4-[[2,5-dimethoxy-4-[[2-(sulphooxy)ethyl]sulphonyl]phenyl]azo]-4,5-dihydro-5-oxo-1-(4-sulphophenyl)-1H-pyrazole-3-carboxylic acid, sodium salt

1H-Pyrazole-3-carboxylic acid, 4-[[2,5-dimethoxy-4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-4,5-dihydro-5-oxo-1-(4-sulfophenyl)-, sodium salt C.I. Reactive orange 74 5-dihydro-5-oxo-1-(4-sulfophenyl)-]phenyl]azo]- sodium salt 1H-Pyrazole-3-carboxylic acid,4-[[2,5-dimethoxy-4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-4,5-dihydro-5-oxo-1-(4-sulfophenyl)-,sodium salt