Synonyms: ST 771;2-Methyl-3-oxo-5,6-di(paradiethylaminophenyl) as triazine;5,6-Bis(p-(diethylamino)phenyl)-2-methyl-as-triazin-3(2H)-one;as-Triazin-3(2H)-one, 5,6-bis(p-(diethylamino)phenyl)-2-methyl-;1,2,4-Triazin-3(2H)-one, 5,6-bis(4-(diethylamino)phenyl)-2-methyl-;AC1MHIEB;LS-155649;5,6-bis[4-(diethylamino)phenyl]-2-methyl-1,2,4-triazin-3-one;68289-21-4