C.I. Disperse Brown 21

5-[(9,10-dihydro-9,10-dioxo-1-anthryl)azo]-2,6-bis[(2-methoxyethyl)amino]-4-methylnicotinonitrile

5-[[(9,10-Dihydro-9,10-dioxoanthracen)-1-yl]azo]-2,6-bis[(2-methoxyethyl)amino]-4-methyl-3-pyridinecarbonitrile

3-Pyridinecarbonitrile, 5-[(9,10-dihydro-9,10-dioxo- 1-anthracenyl)azo]-2,6-bis[(2-methoxyethyl)amino ]-4-methyl-