64325-57-1 3(2H)-Oxazolepropanesulfonic acid,2-[[1,5-dihydro-5-oxo-3-(phenylamino)-1-(4-sulfophenyl)-4H-pyrazol-4-ylidene]ethylidene]-4-methyl-, disodium salt
64325-59-3 3(2H)-Oxazolepropanesulfonic acid,2-[[3,5-dioxo-1-(4-sulfophenyl)-4-pyrazolidinylidene]ethylidene]-5-methyl-, disodium salt