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136656-07-0

中文名称 知母皂苷BII
英文名称 Timosaponin BII
CAS 136656-07-0
分子式 C45H76O19
分子量 921.08
MOL 文件 136656-07-0.mol
更新日期 2024/08/05 16:58:08
136656-07-0 结构式 136656-07-0 结构式

基本信息

中文别名
知母皂苷B2
知母皂苷BII
知母皂苷BII(标准品)
知母皂苷BⅡ(分析标准品)
知母皂苷 BII, 来源于知母
知母皂苷BII、原知母皂苷A3
知母皂苷BII 136656-07-0
TIMOSAPONIN BII 知母皂苷BII
TIMOSAPONIN BII 知母皂苷BII 标准品
英文别名
Timsaponin B-Ⅱ
Timosaponin B2
Timosaponin BII
Prototimosaponin A III
Timosaponin BII USP/EP/BP
Anemarsaponin BII, 98%, from Anemarrhena asphodeloides Bunge
(25S)-26-(β-D-Glucopyranosyloxy)-3β-[(2-O-β-D-glucopyranosyl-β-D-galactopyranosyl)oxy]-5β-furostan-22-ol
(25S)-3β-[(2-O-β-D-Glucopyranosyl-β-D-galactopyranosyl)oxy]-26-(β-D-glucopyranosyloxy)-5β-furostane-22-ol
β-D-Galactopyranoside, (3β,5β,22α,25S)-26-(β-D-glucopyranosyloxy)-22-hydroxyfurostan-3-yl 2-O-β-D-glucopyranosyl-
所属类别
生物化工:中草药成分

物理化学性质

外观性状可溶于甲醇、乙醇、DMSO等有机溶剂,来源于知母Anemarrhena asphodeloides。
沸点1033.6±65.0 °C(Predicted)
密度1.43
闪点573℃
溶解度DMF: 30 mg/ml; DMSO: 30 mg/ml; Ethanol: slightly soluble; PBS (pH 7.2): 5 mg/ml
酸度系数(pKa)12.85±0.70(Predicted)
形态结晶固体
颜色White to off-white

应用领域

用途1
知母皂苷BⅡ具有抑制血小板聚集的作用。

安全数据

海关编码29389090

常见问题列表

生物活性
Timosaponin BII (Prototimosaponin A III) 是在知母根茎中发现的一种甾体皂苷。Timosaponin BII 具有神经保护、抗炎和抗氧化活性。
体外研究

Timosaponin BII is a steroidal glycoside separated from Zhi Mu, is found to have the inhibitory activity against the proliferation of HL-60 (leukemic), Hela (cervix), HepG2 and Bel-7402 (liver), HT-29 (colon), and MDA-MB-468 (breast) human carcinoma cell lines with an IC 50 value of 15.5 μg/mL in the HL-60 cells.

体内研究

Rat retinas in model group and vehicle control group manifest an apparent up-regulation of BACE1 expression. Meanwhile, the level of malonaldehyde (MDA), Aβ1-40 and β-CTF are increased. However, when comparing with the vehicle control group, the retinas in Timosaponin-BII treated group showed significantly less BACE1 and accumulated less Aβ1-40 or β-CTF. It also showed significantly decreased level of MDA and prolonged partial thromboplastin time.

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