The molecular formula C22H28O3 (molar mass: 340.45 g/mol, exact mass: 340.203845 u) may refer to:
- Canrenone, an aldosterone antagonist
- Norethisterone acetate
The molecular formula C22H28O3 (molar mass: 340.45 g/mol, exact mass: 340.203845 u) may refer to: