C18H18

The molecular formula C₁₈H₁₈ (molar mass: 234.33 g/mol, exact mass: 234.1409 u) may refer to:

• Cyclooctadecanonaene, or [18]annulene
• Retene

Index of chemical compounds with the same molecular formula

This set index page lists chemical structure articles associated with the same molecular formula.
If an internal link led you here, you may wish to change the link to point directly to the intended article.