1-(((5-Cyano-2,6-dihydroxy-4-methyl-3-pyridyl)methylene)amino)-9,10-anthracenedione 3-Pyridinecarbonitrile, 5-(((9,10-dihydro-9,10-dioxo-1-anthracenyl)imino)methyl)-1,2-dihydro-6-hydroxy-4-methyl-2-oxo- 5-(((9,10-Dihydro-9,10-dioxo-1-anthryl)imino)methyl)-1,2-dihydro-6-hydroxy-4-methyl-2-oxonicotinonitrile 71786-65-7 EINECS 276-015-3