The molecular formula C45H38O18 (molar mass: 866.77 g/mol, exact mass: 866.205814 u) may refer to:
- Arecatannin B1, a condensed tannin found in the betel nut
- Procyanidin C1, a condensed tannin found in grape
- Procyanidin C2, a condensed tannin found in grape and barley
This set index page lists chemical structure articles associated with the same molecular formula.
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