An agent that inhibits mitosis, or cell division.

• 5-methoxypsoralen
• 7-hydroxycoumarin
• Coumarin
• Eugenol
• Ficusin
• Harmalol
• Hydroquinone
• Imperatorin
• Isopimpinellin
• Methoxsalen
• Osthol
• Xanthotoxol