C18H22O2

The molecular formula C18H22O2 may refer to:


 * 17α-Dihydroequilin
 * 17β-Dihydroequilin
 * 8,9-Dehydroestradiol
 * Dienedione
 * Estrone, a hormone
 * Hexestrol, an estrogen
 * Trenbolone, a veterinary steroid drug