3-bromo-4-methyl-4-prop-2-ynoxypentan-2-one

4-甲基-4(对甲苯基)-2-戊酮

3,3,6,3',3',6'-hexamethyl-2,3,2',3'-tetrahydro-[1,1']spirobiindene

2-氯-4-甲基苯甲醛

4-chloro-6-methylisophthalaldehyde