单词 | cinnamic acid |
释义 | Word Frequency cinnamic acid(sɪˈnæmɪk) noun 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 Word origin C19: from cinnam(on) + -ic; from its being found in cinnamon oil |
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