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Betulinic acid  (Synonyms: 白桦脂酸; Lupatic acid; Betulic acid)

目录号: HY-10529 纯度: ≥98.0%
COA 产品使用指南

Betulinic acid 是一种天然的五环三萜类化合物,为真核细胞拓扑异构酶 I (topoisomerase I) 的抑制剂,IC50 值为 5 μM,具有抗炎,抗疟疾,抗艾滋病和抗肿瘤等活性。

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Betulinic acid Chemical Structure

Betulinic acid Chemical Structure

CAS No. : 472-15-1

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规格 价格 是否有货 数量
10 mM * 1 mL in DMSO ¥572
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25 mg ¥450
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50 mg ¥700
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100 mg ¥900
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200 mg ¥1300
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500 mg ¥2850
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5 g   询价  

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Top Publications Citing Use of Products

    Betulinic acid purchased from MCE. Usage Cited in: Front Pharmacol. 2019 Sep 13;10:1017.  [Abstract]

    Immunofluorescence is performed to determine the LC3II expression level to show the autophagosomes in the cells of the skin flaps: autophagosomes (green) in the dermis in area II; nuclei counterstained with DAPI (blue).
    • 生物活性

    • 实验参考方法

    • 纯度 & 产品资料

    • 参考文献

    生物活性

    Betulinic acid is a natural pentacyclic triterpenoid, acts as a eukaryotic topoisomerase I inhibitor, with an IC50 of 5 μM, and possesses anti-HIV, anti-malarial, anti-inflammatory and anti-tumor properties[1][2][3][4].

    IC50 & Target[1][4][5]

    Topoisomerase I

    5 μM (IC50)

    HIV-1

    1.4 μM (EC50)

    NF-κB

     

    体外研究
    (In Vitro)

    Betulinic acid is a eukaryotic topoisomerase I inhibitor, with an IC50 of 5 μM, and prevents topoisomerase I-DNA interaction[1]. Betulinic acid (10, 20, 40, 80, and 160 μM) significantly suppresses MDA-MB-231 cell viability in a time- and dose-dependent manner after treatment for 24 or 48 h.? Betulinic acid (20, 40 μM) causes decrease in Bcl-2 expression of MDA-MB-231 cells. Betulinic acid also induces morphological changes of MDA-MB-231 cells at 20 μM, and leads to ultrastructure changes of MDA-MB-231 cells at 40 μM[2]. Betulinic acid shows anti-HIV activities, with an EC50 of 1.4 μM in acutely infected H9 lymphocytes[4].

    MCE has not independently confirmed the accuracy of these methods. They are for reference only.

    体内研究
    (In Vivo)

    Betulinic acid (10 and 30 mg/kg, p.o.) significantly abrogates colon shortening, and reduces malondialdehyde (MDA) and lipid hydroperoxide levels in dextran sulfate sodium (DSS)-induced colitis in mice. Betulinic acid (30 mg/kg, p.o.) restores superoxide dismutase (SOD), catalase activity and glutathione (GSH) content to control levels in DSS-induced colitis in mice. Betulinic acid (30 mg/kg, p.o.) also inhibits the DSS-induced increase in inflammatory markers. Betulinic acid (3, 10, 30 mg/kg, p.o.) suppresses acetic acid-induced writhing responses and mustard oil (MO)-induced visceral nociception in mice[3].

    MCE has not independently confirmed the accuracy of these methods. They are for reference only.

    Clinical Trial
    分子量

    456.70

    Formula

    C30H48O3

    CAS 号
    性状

    固体

    颜色

    White to off-white

    中文名称

    白桦脂酸;桦木酸;香柠檬烯;白桦酯酸;白桦酸

    结构分类
    初始来源
    运输条件

    Room temperature in continental US; may vary elsewhere.

    储存方式

    4°C, protect from light

    *In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

    溶解性数据
    In Vitro: 

    DMSO 中的溶解度 : 35.71 mg/mL (78.19 mM; 超声助溶; 吸湿的 DMSO 对产品的溶解度有显著影响,请使用新开封的 DMSO)

    配制储备液
    浓度 溶剂体积 质量 1 mg 5 mg 10 mg
    1 mM 2.1896 mL 10.9481 mL 21.8962 mL
    5 mM 0.4379 mL 2.1896 mL 4.3792 mL
    查看完整储备液配制表

    * 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液;一旦配成溶液,请分装保存,避免反复冻融造成的产品失效
    储备液的保存方式和期限:-80°C, 6 months; -20°C, 1 month (protect from light)。-80°C储存时,请在6个月内使用,-20°C储存时,请在1个月内使用。

    • 摩尔计算器

    • 稀释计算器

    Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

    质量
    =
    浓度
    ×
    体积
    ×
    分子量 *

    Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

    This equation is commonly abbreviated as: C1V1 = C2V2

    浓度 (start)

    C1

    ×
    体积 (start)

    V1

    =
    浓度 (final)

    C2

    ×
    体积 (final)

    V2

    In Vivo:

    请根据您的 实验动物和给药方式 选择适当的溶解方案。

    以下溶解方案都请先按照 In Vitro 方式配制澄清的储备液,再依次添加助溶剂:
    ——为保证实验结果的可靠性,澄清的储备液可以根据储存条件,适当保存;体内实验的工作液,建议您现用现配,当天使用
    以下溶剂前显示的百分比是指该溶剂在您配制终溶液中的体积占比;如在配制过程中出现沉淀、析出现象,可以通过加热和/或超声的方式助溶

    • 方案 一

      请依序添加每种溶剂: 10% DMSO    90% Corn Oil

      Solubility: ≥ 2.08 mg/mL (4.55 mM); 澄清溶液

      此方案可获得 ≥ 2.08 mg/mL(饱和度未知)的澄清溶液,此方案实验周期在半个月以上的动物实验酌情使用。

      1 mL 工作液为例,取 100 μL 20.8 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中,混合均匀。

    以下溶解方案,请直接配置工作液。建议现用现配,在短期内尽快用完。 以下溶剂前显示的百分比是指该溶剂在您配制终溶液中的体积占比; 如在配制过程中出现沉淀、析出现象,可以通过加热和/或超声的方式助溶。

    • 方案 一

      请依序添加每种溶剂: 50% PEG300    50% Saline

      Solubility: 4 mg/mL (8.76 mM); 悬浊液; 超声助溶

    动物溶解方案计算器
    请输入动物实验的基本信息:

    给药剂量

    mg/kg

    动物的平均体重

    g

    每只动物的给药体积

    μL

    动物数量

    由于实验过程有损耗,建议您多配一只动物的量
    请输入您的动物体内配方组成:
    %
    DMSO +
    +
    %
    Tween-80 +
    %
    Saline
    如果您的动物是免疫缺陷鼠或者体弱鼠,建议 DMSO 中的在最后工作液体系中的占比尽量不超过 2%。
    方案所需 助溶剂 包括:DMSO ,均可在 MCE 网站选购。 Tween 80,均可在 MCE 网站选购。
    计算结果
    工作液所需浓度 : mg/mL
    储备液配制方法 : mg 药物溶于 μL  DMSO(母液浓度为 mg/mL)。

    *In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

    您所需的储备液浓度超过该产品的实测溶解度,以下方案仅供参考,如有需要,请与 MCE 中国技术支持联系。
    动物实验体内工作液的配制方法 : 取 μL DMSO 储备液,加入 μL  μL ,混合均匀至澄清,再加 μL Tween 80,混合均匀至澄清,再加 μL 生理盐水
    连续给药周期超过半月以上,请谨慎选择该方案。
    请确保第一步储备液溶解至澄清状态,从左到右依次添加助溶剂。您可采用超声加热 (超声清洗仪,建议频次 20-40 kHz),涡旋吹打等方式辅助溶解。
    纯度 & 产品资料

    纯度: ≥98.0%

    参考文献
    Cell Assay
    [2]

    CCK-8 is used in the assay. MDA-MB-231 cells are cultured in 96-well plates at a density of 2 × 103 cells/well and then treated with DMSO vehicle or various concentrations of Betulinic acid ranging from 5 µM to 160 µM in 100 µL of medium for the indicated times. After the treatment period, the medium in each well is replaced with 110 µL of medium containing 10 µL of the CCK-8 mixture, and the plates are incubated for 1 h and 30 min at 37°C. The absorbance at a wavelength of 450 nm is measured with a microplate reader[2].

    MCE has not independently confirmed the accuracy of these methods. They are for reference only.

    Animal Administration
    [3]

    Female Swiss albino mice are administered vehicle (5% v/v DMSO in peanut oil) or Betulinic acid (3, 10 or 30 mg/kg) in vehicle, orally. After 1 h, acetic acid (300 mg/kg) is administered by intraperitoneal route and number of writhing response of each animal is counted for 20 min by an observer who is blind to the treatments. Writhing response is when animal rubs its abdomen on surface of table/floor with elongation of the body and extension of the hind limbs[3].

    MCE has not independently confirmed the accuracy of these methods. They are for reference only.

    参考文献

    完整储备液配制表

    * 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液;一旦配成溶液,请分装保存,避免反复冻融造成的产品失效
    储备液的保存方式和期限:-80°C, 6 months; -20°C, 1 month (protect from light)。-80°C储存时,请在6个月内使用,-20°C储存时,请在1个月内使用。

    可选溶剂 浓度 溶剂体积 质量 1 mg 5 mg 10 mg 25 mg
    DMSO 1 mM 2.1896 mL 10.9481 mL 21.8962 mL 54.7405 mL
    5 mM 0.4379 mL 2.1896 mL 4.3792 mL 10.9481 mL
    10 mM 0.2190 mL 1.0948 mL 2.1896 mL 5.4741 mL
    15 mM 0.1460 mL 0.7299 mL 1.4597 mL 3.6494 mL
    20 mM 0.1095 mL 0.5474 mL 1.0948 mL 2.7370 mL
    25 mM 0.0876 mL 0.4379 mL 0.8758 mL 2.1896 mL
    30 mM 0.0730 mL 0.3649 mL 0.7299 mL 1.8247 mL
    40 mM 0.0547 mL 0.2737 mL 0.5474 mL 1.3685 mL
    50 mM 0.0438 mL 0.2190 mL 0.4379 mL 1.0948 mL
    60 mM 0.0365 mL 0.1825 mL 0.3649 mL 0.9123 mL
    Help & FAQs
    • Do most proteins show cross-species activity?

      Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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    产品名称:
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    目录号:
    HY-10529
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