中文名 | 异七叶皂苷 Ib |
英文名 | isoescin Ib |
别名 | 异七叶树皂苷IB 异七叶皂苷 Ib 异七叶皂苷 IB 七叶皂苷D(异七叶皂苷IB) |
英文别名 | Aescin D Escin IVb Isoescin IB isoescin Ib Isoescin Ib Isoescin IB(Isoaescin IB) 4)]-β-D-glucopyranosiduronic acid β-D-Glucopyranosiduronic acid, (3β,4β,16α,21β,22α)-28-(acetyloxy)-16,22,23-trihydroxy-21-[[(2Z)-2-methyl-1-oxo-2-buten-1-yl]oxy]olean-12-en-3-yl O-β-D-glucopyranosyl-(1→2)-O-[β-D-glucopyranosyl-(1→4)]- (3beta,4beta,16alpha,21beta,22alpha)-28-(Acetyloxy)-16,22,23-trihydroxy-21-[[(2Z)-2-methyl-1-oxo-2-buten-1-yl]oxy]olean-12-en-3-yl O-beta-D-glucopyranosyl-(1-2)-O-[beta-D-glucopyranosyl-(1-4)]-beta-D-glucopyranosiduronic acid |
CAS | 219944-46-4 |
化学式 | C55H86O24 |
分子量 | 1131.26 |
InChI | InChI=1/C55H86O24/c1-10-23(2)46(71)79-44-43(68)55(22-72-24(3)59)26(17-50(44,4)5)25-11-12-30-51(6)15-14-32(52(7,21-58)29(51)13-16-53(30,8)54(25,9)18-31(55)60)75-49-41(77-48-38(66)36(64)34(62)28(20-57)74-48)39(67)40(42(78-49)45(69)70)76-47-37(65)35(63)33(61)27(19-56)73-47/h10-11,26-44,47-49,56-58,60-68H,12-22H2,1-9H3,(H,69,70)/b23-10-/t26-,27+,28+,29+,30+,31+,32-,33+,34+,35-,36-,37+,38+,39-,40-,41+,42-,43-,44-,47-,48-,49+,51-,52+,53+,54+,55-/m0/s1 |
密度 | 1.46 |
熔点 | 223.2-225.5°C |
沸点 | 1148.1±65.0 °C(Predicted) |
比旋光度 | (c, 0.1 in MeOH)-4.3 |
闪点 | 314.1°C |
蒸汽压 | 0mmHg at 25°C |
溶解度 | 在水和甲醇中易溶,在乙醇和丁醇中溶解,在氯仿和乙酸中不溶。 |
折射率 | 1.627 |
酸度系数 | 2.63±0.70(Predicted) |
存储条件 | 2-8℃ |
敏感性 | Easily absorbing moisture |
外观 | 白色粉末 |
MDL号 | MFCD12031630 |
体外研究 | β-Escin (mainly consisting of escin Ia and escin Ib) is the major active ingredient in horse chestnut seeds extracts. β-escin can inhibit proliferation and/or induce apoptosis in various types of cancer cells including A549 cell, HT-29 cell, HCC cell, OVCAR3 cell and H-Ras 5RP7 cell. β-escin may be useful as a chemopreventive agent, especially for tumors associated with an inflammatory response. As the minor component of escin, α-escin (mainly consisting of isoescin Ia and isoescin Ib) exhibits lower bioactivity. |
参考资料 展开查看 | 1. 聂芳 吕伟旗 汤晟凌. HPLC法同时测定14个产地娑罗子中4种七叶皂苷[J]. 中成药 2018 40(12):2703-2708. |
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