Ferulic acid has part(s) oxygen
Ferulic acid is a hydroxycinnamic acid, is an organic compound and a polyphenol with the formula (CH3O)HOC6H3CH=CHCO2H.  The name is derived from the genus Ferula, referring to the giant fennel (Ferula communis). Classified as a phenolic phytochemical, ferulic acid is an amber colored solid.  Esters of ferulic acid are found in plant cell walls, covalently bonded to hemicellulose such as arabinoxylans.
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