cinnamic acid

American  

noun

Chemistry.

1. a white, crystalline, water-insoluble powder, C 9 H 8 O 2 , usually obtained from cinnamon or synthesized: used chiefly in the manufacture of perfumes and medicines.

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cinnamic acid British  

/ sɪˈnæmɪk /

noun

1. 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: C 6 H 5 CH:CHCOOH

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cinnamic acid Scientific  

/ sə-năm′ĭk /

1. A white crystalline organic acid obtained from cinnamon or from balsams, or made synthetically. It is used to manufacture perfumery compounds. Chemical formula: C ₉ H ₈ O ₂ .

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Etymology

Origin of cinnamic acid

First recorded in 1880–85

Example Sentences

See Examples For:

cinnamic acid

A great variety of substances pass under this name, but the term is now usually restricted to resins which, in addition to a volatile oil, contain benzoic and cinnamic acid.

From Webster's Unabridged Dictionary (2nd 100 Pages) by Webster, Noah

On exposure they rapidly absorb cinnamic acid, two resins and water.

From The Commercial Products of the Vegetable Kingdom Considered in Their Various Uses to Man and in Their Relation to the Arts and Manufactures; Forming a Practical Treatise & Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, &c. of the Various Substances Obtained From Trees and Plants, Entering into the Husbandry of Tropical and Sub-tropical Regions, &c. by Simmonds, P. L.

The author has now proved that under the same conditions by which ordinary alcohol affords aldehyde, styrone affords the aldehyde of cinnamic acid, that is, oil of cinnamon.

From The Art of Perfumery And Methods of Obtaining the Odors of Plants by Piesse, George William Septimus

An isomer of cinnamic acid known as allo-cinnamic acid is also known.

From Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 4 "Cincinnatus" to "Cleruchy" by Various

By the addition of diluted sulphuric acid, the aldehyde of cinnamic acid is afterwards procured pure.

From The Art of Perfumery And Methods of Obtaining the Odors of Plants by Piesse, George William Septimus