2,2'-((9,10-Dihydro-9,10-dioxo-1,8-anthracenediyl)diimino)bis(2-oxoacetic) acid 63216-87-5 Acetic acid, 2,2'-((9,10-dihydro-9,10-dioxo-1,8-anthracenediyl)diimino)bis(2-oxo- EINECS 264-005-1