1-Amino-9,10-dihydro-4-((4-hydroxyphenyl)amino)-9,10-dioxoanthracene-2-sulphonic acid 2-Anthracenesulfonic acid, 1-amino-9,10-dihydro-4-((4-hydroxyphenyl)amino)-9,10-dioxo- 67966-88-5 EINECS 267-959-7