中文名稱：銀杏內(nèi)酯A
中文別名 ：銀杏內(nèi)酯 A
英文名稱：Ginkgolide A
英文別名：Ginkgolide A; BN 52020; 9H-1,7a-(Epoxymethano)-1H,6aH-cyclopenta(c)furo(2,3-b)furo(3',2':3,4)cyclopenta(1,2-d)furan-5,9,12(4H)-trione, 3-(1,1-dimethylethyl)hexahydro-4,7b-dihydroxy-8-methyl-, (1R,3S,3aS,4R,6aR,7aR,7bR,8S,10aS,11aS)-; 9H-1,7a-(Epoxymethano)-1H,6aH-cyclopenta(c)furo(2,3-b)furo(3',2':3,4)cyclopenta(1,2-d)furan-5,9,12(4H)-trione, 3-(1,1-dimethylethyl)hexahydro-4,7b-dihydroxy-8-methyl-, (1R-(1alpha,3beta,3aS*,4beta,6aalpha,7aalpha,7balpha,8alpha,10aalpha,11 aS*))-; 9H-1,7a-(Epoxymethano)-1H,6aH-cyclopenta(c)furo(2,3-b)furo(3',2':3,4)cyclopenta(1,2-d)furan-5,9,12(4H)-trione, 3-tert-butylhexahydro-4,7b-dihydroxy-8-methyl-; (3aR,4aR,4bR,5S,7aS,9R,11S)-11-tert-butyl-1,4b-dihydroxy-5-methyltetrahydro-4bH,9H-9,4a-(epoxymethano)cyclopenta[c]furo[2,3-b]furo[3',2':3,4]cyclopenta[1,2-d]furan-2,6,13(1H,5H)-trione; (1R,3aR,4bR,5S,7aS,9R,11S)-11-tert-butyl-1,4b-dihydroxy-5-methyltetrahydro-4bH,9H-9,4a-(epoxymethano)cyclopenta[c]furo[2,3-b]furo[3',2':3,4]cyclopenta[1,2-d]furan-2,6,13(1H,5H)-trione
CAS號(hào)：15291-75-5
分子式：C20H24O9
分子量：408.3992
密度：1.56g/cm3
熔點(diǎn)：330-332℃
沸點(diǎn)：710.1°C at 760 mmHg
閃點(diǎn)：256.5°C
蒸汽壓：2.69E-23mmHg at 25°C
折光率：[a]57820=-39°
來(lái)源：銀杏科植物銀杏Ginkgo biloba L. 的干燥葉
性狀：白色針晶。
溶解性：溶解于乙酸乙酯、甲醇、乙醇、二甲亞砜等溶劑。
藥理作用：銀杏內(nèi)酯A對(duì)應(yīng)激性潰瘍有顯著的預(yù)防作用,對(duì)膽堿能損傷記憶功能具有恢復(fù)作用，能防止ChAT活力降低,緩解和改善心肌缺血作用，可阻抑DAD的發(fā)生,并有抗焦慮作用。
包裝說(shuō)明：毫克級(jí),克級(jí)
保質(zhì)期：2年
貯藏條件：陰涼干燥，避光環(huán)境保存。
