5-(2,2-dimethyl-5-oxo-1,3-dioxolan-4-yl)-2,2-dimethyl-1,3-dioxolan-4-one

2,2-二甲基-苯并二氢吡喃-4-酮

6-丙酮基二氢血根碱

2-methylhepta-3,5-diyn-2-ol

1,1-difluoro-2-methylprop-1-ene