The molecular formula C₁₈H₁₆O₇ (molar mass: 344.31 g/mol, exact mass: 344.0896 u) may refer to:

• Ayanin, a flavonol
• Cirsilineol, a flavone
• Eupatilin, a flavone and a drug
• Pachypodol, a flavonol
• Santin (molecule), a flavonol
• Scillavone A, a homoisoflavone
• Usnic acid, a naturally occurring dibenzofuran derivative found in several lichen species

Index of chemical compounds with the same molecular formula

This set index page lists chemical structure articles associated with the same molecular formula.
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