1-Amino-4-[4-methoxy-3-[[2-(sodiosulfooxy)ethyl]sulfonyl]anilino]-9,10-dioxo-9,10-dihydroanthracene-2-sulfonic acid sodium salt

disodium 1-amino-9,10-dihydro-4-[[4-methoxy-3-[[2-(sulphonatooxy)ethyl]sulphonyl]phenyl]amino]-9,10-dioxoanthracene-2-sulphonate

1-Amino-9,10-dihydro-4-[4-methoxy-3-[2-(sodiooxysulfonyloxy)ethylsulfonyl]anilino]-9,10-dioxoanthracene-2-sulfonic acid sodium salt