2-ethyl-5-methylcyclohex-3-ene-1,2-diol

2-ethyl-5-methyl-1,4-dimethoxybenzene

2,5-二甲氧基-4-甲苯甲醛

(2,5-dimethoxy-4-methylphenyl)ethene

5-methyl-2-oxocyclohex-3-en-1-yl acetate