Dipsacoside B is a major bioactive saponin, which can be used as a marker.

A liquid chromatography-electrospray ionization-mass spectrometry method has been developed and validated for identification and quantification of four major bioactive saponins in rat plasma after oral administration of extraction of saponins from Flos Lonicerae, i.e., Macranthoidin B, Macranthoidin A, Dipsacoside B, and Macranthoside B. The retention time of Macranthoidin B, Macranthoidin A, Dipsacoside B, Macranthoside B and IS are 10.65, 12.11, 13.81, 23.31 and 5.47 min, respectively^[1]. Taking Macranthoidins A, B, Dipsacoside B (saponins), sweroside (iridoids), and luteolin-7-O-d-glucoside (flavonoids) as markers, a method of ultra high performance liquid chromatography with triple quadrupole mass spectrometry is employed to determine their amounts in Lonicerae Flos, Lonicerae Japonicae Flos, and Lonicerae Japonicae Flos preparations^[2].

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

1075.24

C₅₃H₈₆O₂₂

33289-85-9

川续断皂苷乙；川续断皂苷 B

Room temperature in continental US; may vary elsewhere.

4°C, protect from light

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

In Vitro: 

DMSO : 100 mg/mL (93.00 mM; Need ultrasonic)

*

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。

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

• 1.

  请依序添加每种溶剂： 10% DMSO    40% PEG300    5% Tween-80    45% saline

  Solubility: ≥ 2.5 mg/mL (2.33 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (2.33 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中，混合均匀；向上述体系中加入50 μL Tween-80，混合均匀；然后继续加入 450 μL生理盐水定容至 1 mL。

  将 0.9 g 氯化钠，完全溶解于 100 mL ddH₂O 中，得到澄清透明的生理盐水溶液

• 2.

  请依序添加每种溶剂： 10% DMSO    90% (20% SBE-β-CD in saline)

  Solubility: ≥ 2.5 mg/mL (2.33 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (2.33 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL 20% 的 SBE-β-CD 生理盐水水溶液中，混合均匀。

  将 2 g 磺丁基醚 β-环糊精加入 5 mL 生理盐水中，再用生理盐水定容至 10 mL，完全溶解，澄清透明
• 3.

  请依序添加每种溶剂： 10% DMSO    90% corn oil

  Solubility: ≥ 2.5 mg/mL (2.33 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (2.33 mM，饱和度未知) 的澄清溶液，此方案不适用于实验周期在半个月以上的实验。

  以 1 mL 工作液为例，取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中，混合均匀。

• [1]. Chen CY, et al. Liquid chromatography-mass spectrometry analysis of macranthoidin B, macranthoidin A, Dipsacoside B, and macranthoside B in rat plasma for the pharmacokinetic investigation. J Chromatogr B Analyt Technol Biomed Life Sci. 2009 Jan 15;877(3):159-65.

  [2]. Zhang X, et al. Rapid quantitative analysis of adulterant Lonicera species in preparations of Lonicerae Japonicae Flos. J Sep Sci. 2015 Dec;38(23):4014-20.

Mice^[1]
Sprague-Dawley rats (220-250 g) are used. To calculate the administered dose of Macranthoidin B, Macranthoidin A, Dipsacoside B, and Macranthoside B, their contents in saponins extraction are quantitatively determined. One hundred milligrams of the dry powder is suspended in 100 mL 50% methanol (v/v), ultrasonically extracted for 40 min, and then cooled at room temperature; 50% methanol is added to compensate for the lost weight. Finally, 5 μL of this solution is injected into the HPLC system for analysis after filtration through a 0.45 μm membrane. The contents of Macranthoidin B, Macranthoidin A, Dipsacoside B, and Macranthoside B are found as 36.7, 6.59, 23.3 and 0.506 g/100 g extraction, respectively.

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

• [1]. Chen CY, et al. Liquid chromatography-mass spectrometry analysis of macranthoidin B, macranthoidin A, Dipsacoside B, and macranthoside B in rat plasma for the pharmacokinetic investigation. J Chromatogr B Analyt Technol Biomed Life Sci. 2009 Jan 15;877(3):159-65.

  [2]. Zhang X, et al. Rapid quantitative analysis of adulterant Lonicera species in preparations of Lonicerae Japonicae Flos. J Sep Sci. 2015 Dec;38(23):4014-20.