계피산에틸

Ethyl Cinnamate, ethyl 3-phenylacrylate, C6H5CH=CHCOOC2H5.Occurs naturally in storax and the volatile oil of Koempferia galanga.The commercial product is a colourless liquid, invariably prepared artificially. Has a sweet balsami honey-note odor of great persistence. Ethyl cinnamate is useful in Oriental bouquets, and in combination with clary sage and citrus oils will make delightful amber colognes.

개요Ethyl cinnamate is the ester of cinnamic acid and ethanol, and is typically found in the essential oil of cinnamon. It is noteworthy that pure ethyl cinnamate has an aroma of cinnamon, complicated by balsamic and red fruit nuances,all of which can be characteristic of a fine Nebbiolo wine's aromatics.

출처Normally occurring in the trans-form; a cis-form also exists. Reported found in Oriental styrax, in the oil of Campheria galanga and in the rhizomes of Hedychium spicatum. Also reported found in cherry, American cranberry, pineapple, guava, strawberry, fresh blackberry, strawberry jam, soybean, yellow passion fruit juice, hybrid passion fruit juice, apple brandy, quince, prickly pear, strawberry wine, Bourbon vanilla, sea buckthorn, cinnamon leaf and root bark, clove, brandy, rum, sherry, grape wines, cocoa, soybean and other natural sources.

용도Ethyl cinnamate is used in medical intermediate, as a pharmaceutical intermediate and in organic synthesis.

일반 설명Ethyl cinnamate can be used as a flavoring and fragrance ingredient. It is one of the key odor components reported in Burgundy Pinot noir wines.

생산 방법Ethyl cinnamate is found in storax oil, Kaempferia galanga, and several other oils. It is produced by the direct esterification esterification of ethanol with cinnamic acid under azeotropic conditions or by Claisen-type condensation of ethyl acetate and benzaldeyde in the presence of sodium metal .

By heating to 100°C cinnamic acid, alcohol and sulfuric acid in the presence of aluminum sulfate; also by Claisen condensation of benzaldehyde and ethyl acetate

순도시험(1) 비중 : 이 품목의 비중은 1.045～1.051이어야 한다. (2) 굴절률 : 이 품목의 굴절률 은 1.558～1.560이어야 한다. (3) 용상 : 이 품목 1mL를 70% 에탄올 5mL에 녹일 때, 그 액은 징명하여야 한다. (4) 산가 : 이 품목의 산가는 향료시험법 중 산가측정법에 따라 시험할 때, 1 이하이어야 한다.

확인시험이 품목 1mL에 10% 알콜성수산화나트륨용액 10mL를 넣어「계피산메틸」의 확인시험에 따라 시험한다.

정량법이 품목 1g을 정밀히 달아 향료시험법 중 에스테르가 및 에스테르함량측정법에 따라 시험한다. 다만, 가열전에 물 5mL를 넣는다.0.5N 알콜성수산화칼륨용액 1mL ＝ 88.11mg C11H12O2