cinnamic acid

n. A fragrant white crystalline acid, C₉H₈O₂, obtained from cinnamon or from balsams such as storax or made synthetically and used chiefly to manufacture perfumery compounds.

[cinnam(on) + -ic.]

cinnamic acid

(sɪˈnæmɪk) n (Elements & Compounds) 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[C19: from cinnam(on) + -ic; from its being found in cinnamon oil]

Translations

Cinnamic Acid

cinnamic acid

[sə′nam·ik ′as·əd] (organic chemistry) C₆H₅CHCHCOOH Colorless, monoclinic acid; forms scales, slightly soluble in water; found in natural balsams.

Cinnamic Acid

(also β-phenylacrylic acid), a fatty-aromatic unsaturated carboxylic acid, C₆H₅CH=CHCOOH; colorless crystals. Two geometric isomers of cinnamic acid are known—the trans-isomer and cis-isomer. The trans-isomer is more stable and has a melting point of 133°C, and a boiling point of 300°C. The cis-isomer forms three polymorphic forms with melting points of 68°, 58°, and 42°C, respectively; the first form, allocinnamic acid, exhibits the highest degree of stability.

Cinnamic acid is contained in Peru balsam and Tolu balsam (mainly in the form of esters), as well as in certain essential oils. In industry trans-cinnamic acid is usually prepared by condensation of acetone with benzaldehyde followed by oxidation of the product benzylidene acetone, C₆H₅CH = CHCOCH₃, with hypochlorous acid. The cis-form is obtained from the byproducts of the cocaine industry. Esters of cinnamic acid serve as aromatic substances in perfumes and cosmetics.

cinnamic acid

cin·nam·ic ac·id

(si-nam'ik as'id), Obtained from cinnamon oil, Peruvian and tolu balsams, or storax. Previously used in lupus as a paint and in infectious diseases to promote leukocytosis. Synonym(s): cinnamylic acid, phenylacrylic acid

cinnamic acid

C₉H₈O₂, an insoluble white powder derived from cinnamon. It is used as a flavoring agent in cooking and in the preparation of perfumes and medicines. CAS # 140-10-3See also: acid

单词	cinnamic acid
释义	cinnamic acid cinnamic acid n. A fragrant white crystalline acid, C₉H₈O₂, obtained from cinnamon or from balsams such as storax or made synthetically and used chiefly to manufacture perfumery compounds. [cinnam(on) + -ic.] cinnamic acid (sɪˈnæmɪk) n (Elements & Compounds) 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[C19: from cinnam(on) + -ic; from its being found in cinnamon oil] Translations Cinnamic Acid cinnamic acid [sə′nam·ik ′as·əd] (organic chemistry) C₆H₅CHCHCOOH Colorless, monoclinic acid; forms scales, slightly soluble in water; found in natural balsams. Cinnamic Acid (also β-phenylacrylic acid), a fatty-aromatic unsaturated carboxylic acid, C₆H₅CH=CHCOOH; colorless crystals. Two geometric isomers of cinnamic acid are known—the trans-isomer and cis-isomer. The trans-isomer is more stable and has a melting point of 133°C, and a boiling point of 300°C. The cis-isomer forms three polymorphic forms with melting points of 68°, 58°, and 42°C, respectively; the first form, allocinnamic acid, exhibits the highest degree of stability. Cinnamic acid is contained in Peru balsam and Tolu balsam (mainly in the form of esters), as well as in certain essential oils. In industry trans-cinnamic acid is usually prepared by condensation of acetone with benzaldehyde followed by oxidation of the product benzylidene acetone, C₆H₅CH = CHCOCH₃, with hypochlorous acid. The cis-form is obtained from the byproducts of the cocaine industry. Esters of cinnamic acid serve as aromatic substances in perfumes and cosmetics. cinnamic acid cin·nam·ic ac·id (si-nam'ik as'id), Obtained from cinnamon oil, Peruvian and tolu balsams, or storax. Previously used in lupus as a paint and in infectious diseases to promote leukocytosis. Synonym(s): cinnamylic acid, phenylacrylic acid cinnamic acid C₉H₈O₂, an insoluble white powder derived from cinnamon. It is used as a flavoring agent in cooking and in the preparation of perfumes and medicines. CAS # 140-10-3See also: acid ThesaurusSeeacid
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