C15H14O5

The molecular formula C15H14O5 (molar mass : 274.26 g/mol, exact mass : 274.084123) may refer to:
 * Polyphenols
 * Afzelechin (Epiafzelechin), a flavan-3-ol
 * Apiforol, a flavan-4-ol
 * Fisetinidol, a flavan-3-ol
 * Methysticin, a kavalactone
 * Oritin (Epioritin), a flavan-3-ol
 * Phloretin, a dihydrochalcone