Entry from US English dictionary
1.1Denoting an acidic crystalline powder ( cinnamic acid), C9H8O2, derived from cinnamon or produced synthetically and used in medicine and perfumery.
- Propolis has been reported to contain cinnamic acid.
- A number of solid amine and diamine salts of cinnamic acids 2 were photochemically isomerized in low yields.
- In the study, a series of benzoic and cinnamic acids were tested.
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