Syringaldehyde is a polyphenolic compound belonging to the group of flavonoids and is found in different plant species like Manihot esculenta and Magnolia officinalis^[1]. Syringaldehyde moderately inhibits COX-2 activity with an IC₅₀ of 3.5 μg/mL^[2]. Anti-hyperglycemic and anti-inflammatory activities^[1].

Syringaldehyde inhibits COX-2 activity in a dosedependent manner with an IC₅₀ of 3.5 μg/mL^[2].

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

Syringaldehyde exerts anti-hyperglycemic effect in rat model of diabetes induced by streptozotocin. Apart from antioxidant capability, Syringaldehyde also has anti-inflammatory activity as it is found to have inhibitory action on cyclo-oxygenase 2 (COX-2) in mouse macrophage cell line^[1].

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

182.17

C₉H₁₀O₄

134-96-3

固体

Light brown to brown

丁香醛

• Phenols
• Monophenols

• Ketones, Aldehydes, Acids

• 植物
• 大戟科
• 木薯

• 微生物

Room temperature in continental US; may vary elsewhere.

4°C, stored under nitrogen

*In solvent : -80°C, 6 months; -20°C, 1 month (stored under nitrogen)

DMSO 中的溶解度 : 100 mg/mL (548.94 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)

H₂O 中的溶解度 : < 0.1 mg/mL (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 (stored under nitrogen)。-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。

• 方案 一

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

  Solubility: ≥ 2.5 mg/mL (13.72 mM); 澄清溶液

  此方案可获得 ≥ 2.5 mg/mL（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；再向上述体系中加入 50 μL Tween-80，混合均匀；然后再继续加入 450 μL 生理盐水 定容至 1 mL。

  生理盐水的配制：将 0.9 g 氯化钠，溶解于 ddH₂O 并定容至 100 mL，可以得到澄清透明的生理盐水溶液。

• 方案 二

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

  Solubility: ≥ 2.5 mg/mL (13.72 mM); 澄清溶液

  此方案可获得 ≥ 2.5 mg/mL（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。

  20% SBE-β-CD in Saline 的配制（4°C，储存一周）：2 g SBE-β-CD（磺丁基醚 β-环糊精）粉末定容于 10 mL 的生理盐水中，完全溶解至澄清透明。

• 方案 三

  请依序添加每种溶剂： 10% DMSO    90% Corn Oil

  Solubility: ≥ 2.5 mg/mL (13.72 mM); 澄清溶液

  此方案可获得 ≥ 2.5 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。

  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]. Shahzad S, et al. Protective effect of syringaldehyde on biomolecular oxidation, inflammation and histopathological alterations in isoproterenol induced cardiotoxicity in rats. Biomed Pharmacother. 2018 Dec;108:625-633.  [Content Brief]

  [2]. Stanikunaite R, et al. Cyclooxygenase-2 inhibitory and antioxidant compounds from the truffle Elaphomyces granulatus. Phytother Res. 2009 Apr;23(4):575-8.  [Content Brief]

Rats^[1]
Adult male albino wistar rats (weighing 180-220 g)
12.5 mg/kg, 25 mg/kg, and 50 mg/kg; p.o.; for 21 days
Adult male albino wistar rats are randomly divided into six groups (n=6), first group serves as control and receives vehicle (orally) for 21 days. Second group is given Syringaldehyde in saline orally at 50 mg/kg for 21 days. Third group receives vehicle for a period of 21 days and then ISO (100 mg/kg, s.c.) on 20th and 21 st day at an interval of 24 h. Fourth group is given Syringaldehyde for 21 days at 12.5 mg/kg, p.o. and ISO on 20th and 21 st day. Fifth group receives Syringaldehyde at concentration of 25 mg/kg, p.o. for 21 days and ISO on 20th and 21 st day. The sixth group is treated with 50 mg/kg of Syringaldehyde for 21 days and ISO on 20th and 21 st day. During the experimental procedure body weight of animals are monitored and on 22nd day, 24 h after second injection of ISO, rats sre sacrificed by cervical decapitation.
Note: Body weight of animals belonging to different groups did not differed significantly but heart weight of ISO challenged animals were highly elevated (p ≤ 0.05) than control rats. However, treatment of rats with Syringaldehyde significantly reduced heart weight in dose dependent way. The rats treated with Syringaldehyde alone displayed an insignificant difference from control group.

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

• [1]. Shahzad S, et al. Protective effect of syringaldehyde on biomolecular oxidation, inflammation and histopathological alterations in isoproterenol induced cardiotoxicity in rats. Biomed Pharmacother. 2018 Dec;108:625-633.  [Content Brief]

  [2]. Stanikunaite R, et al. Cyclooxygenase-2 inhibitory and antioxidant compounds from the truffle Elaphomyces granulatus. Phytother Res. 2009 Apr;23(4):575-8.  [Content Brief]