3-Pyridinecarbonitrile, 5-((9,10-dihydro-9,10-dioxo-1-anthracenyl)azo)-2,6-bis((2-methoxyethyl)amino)-4-methyl- 5-((9,10-Dihydro-9,10-dioxo-1-anthryl)azo)-2,6-bis((2-methoxyethyl)amino)-4-methylnicotinonitrile 73398-96-6 C.I. Disperse Brown 21 EINECS 277-460-6