Vicenin 2 is an angiotensin-converting enzyme (ACE) inhibitor (IC₅₀=43.83 μM) from the aerial parts of Desmodium styracifolium^[1].

594.52

C₂₇H₃₀O₁₅

23666-13-9

维采宁 2

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 (168.20 mM; Need ultrasonic)

H₂O : < 0.1 mg/mL (ultrasonic) (insoluble)

*

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 (4.21 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (4.21 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 (4.21 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (4.21 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

• [1]. Zhang YQ, et al. Bioassay-guided preparative separation of angiotensin-converting enzyme inhibitory C-flavone glycosides from Desmodium styracifolium by recycling complexation high-speed counter-current chromatography. J Pharm Biomed Anal. 2015 Jan;102:276-81.

Vicenin 1 is a C-glycosylflavone that has an inhibitory effect on angiotensin-converting enzyme (ACE)(IC₅₀=52.50 μM)^[1].

IC50: 52.50 μM (ACE)^[1]

The target-isolated C-glycosylflavone (Vicenin 1) is evaluated for inhibitory activities. Vicenin 1 embodies effective ACE inhibitory activities with an IC₅₀ value of 52.50 μM. The tested compound 3 (Vicenin 1) shows activity via the generation of chelate complexes within the active center of ACE^[1].

Shanghai Jinpan Biotech Co Ltd has not independently confirmed the accuracy of these methods. They are for reference only.

564.49

C₂₆H₂₈O₁₄

35927-38-9

维采宁 1

Room temperature in continental US; may vary elsewhere.

Powder	-20°C	3 years
	4°C	2 years
In solvent	-80°C	6 months
	-20°C	1 month

• [1]. Zhang YQ, et al. Bioassay-guided preparative separation of angiotensin-converting enzyme inhibitory C-flavone glycosides from Desmodium styracifolium by recycling complexation high-speed counter-current chromatography. J Pharm Biomed Anal. 2015 Jan;102:276-81.