4-[(2-methylphenyl)hydrazinylidene]cyclohexa-2,5-dien-1-one

2,6-二[邻甲苯基偶氮]间苯二酚

2-cyano-2-[(2-methylphenyl)hydrazinylidene]acetic acid

6-肼基间甲苯磺酸

(2-甲基苯基)肼