|cinnamic acid (sɪˈnæmɪk)|
|a white crystalline water-insoluble weak organic acid existing in two isomeric forms; 3-phenylpropenoic acid. The trans- form occurs naturally and its esters are used in perfumery. Formula: C6H5CH:CHCOOH|
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|cinnamic acid (sə-nām'ĭk) Pronunciation Key
A white crystalline organic acid obtained from cinnamon or from balsams, or made synthetically. It is used to manufacture perfumery compounds. Chemical formula: C9H8O2.