6483-86-9

5-nitro-9,10-dioxoanthracene-2-sulfonic acid 5-Nitro-9,10-dioxo-2-anthracenesulfonic acid 5-nitro-9,10-dioxo-9,10-dihydroanthracene-2-sulfonic acid 2-Anthracenesulfonic acid, 9,10-dihydro-5-nitro-9,10-dioxo-