1-Amino-9,10-dihydro-4-((4-methoxyphenyl)amino)-9,10-dioxoanthracene-2-sulphonic acid 2-Anthracenesulfonic acid, 1-amino-9,10-dihydro-4-((4-methoxyphenyl)amino)-9,10-dioxo- 54946-60-0 EINECS 259-402-1