C₁₈H₂₇NO₂

The molecular formula C₁₈H₂₇NO₂ may refer to:

• Alifedrine, a partial beta-adrenergic agonist
• Caramiphen, an anticholinergic drug
• Dyclonine, an over-the-counter local anesthetic
• S33005, a serotonin–norepinephrine reuptake inhibitor
• WS-12