3-(4-甲基苯甲酰)丙酸

4-甲基苯丙酮

4,5-dihydro-5-(4-methylphenyl)-2(3H)-furanone

4-(4-甲基苯基)-4-氧代丁酸甲酯

Methyl (E)-4-hydroxy-4-(4'-methylphenyl)but-2-enoate