对甲基苯乙酮

2-{1-[(4-Bromo-phenyl)-hydrazono]-ethyl}-5-methyl-phenol

8,9-dihydroxythymol

6-乙酰基-3-甲基-2-环己烯-1-酮

N-(1-ethoxycarbonyl-propen-2-yl)urea