The molecular formula C₂₀H₃₂O₃ may refer to:

• Epoxyeicosatrienoic acids
• Hydroxyeicosatetraenoic acids
  • 5-Hydroxyeicosatetraenoic acid
  • 12-Hydroxyeicosatetraenoic acid
  • 15-Hydroxyeicosatetraenoic acid
  • 20-Hydroxyeicosatetraenoic acid
  • 19-Hydroxyeicosatetraenoic acid (see 20-Hydroxyeicosatetraenoic acid)
• Isocupressic acid

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