Eucalyptol is an inhibitor of 5-HT₃ receptor ,potassium channel, TNF-α and IL-1β.

Eucalyptol inhibits 5-HT-evoked currents in oocytes expressing 5-HT₃ receptors with an IC₅₀ of 258 µM^[1]. Eucalyptol (Cin) treatment significantly decreases the ROS level in Aβ_25-35 treated cells in a dose dependent manner. Eucalyptol treatment significantly decreases the NO level in Aβ_25-35 treated cells in a dose dependent manner (p<0.05 and p<0.01). Eucalyptol treatment also significantly decreases IL-1βlevel in Aβ_25-35 treated cells in a dose dependent manner (p<0.05 and p<0.01) as compare to Aβ_25-35 treated PC12 cells. IL-6 level is also attenuated by Eucalyptol in dose dependent manner (p<0.05 and p<0.01) as compare to Aβ_25-35 treated cells^[3].

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

Results show that male and female rats treated with Eucalyptol (CIN) at the highest doses, 500 and 1000 mg/kg, have shown lower body weight than control group from the 7th to 50th day of treatment. The administration of Eucalyptol significantly reduces body weight gain of male rats (Eucalyptol 500 and 1000 mg/kg) and female rats (Eucalyptol 1000 mg/kg) in the first week of treatment. However, this reduction is followed by an increase in body weight of rats males and females treated with all doses of the second week until the end of treatment. For male rats, there is a significant increase of 6.93% in mean corpuscular volume (MCV) (Eucalyptol 1000 mg/kg) and of 43.54 and 38.98% in the platelet count (Eucalyptol 500 and 1000 mg/kg, respectively) and a decrease of 6.74 and 6.67% in mean corpuscular hemoglobin concentration (MCHC) (Eucalyptol 500 and 1000 mg/kg) and mean platelet volume (MPV) of 10.40, 10.60 and 15.73% (Eucalyptol 100, 500 and 1000 mg/kg, respectively), when compare to the control group^[4].

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

154.25

C₁₀H₁₈O

470-82-6

桉油精；桉树脑

Room temperature in continental US; may vary elsewhere.

DMSO : ≥ 120 mg/mL (777.96 mM)

H₂O : 33.33 mg/mL (216.08 mM; Need ultrasonic)

* “≥” means soluble, but saturation unknown.

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。-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。

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: ≥ 3.5 mg/mL (22.69 mM); Clear solution

  此方案可获得 ≥ 3.5 mg/mL (22.69 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 35.0 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: ≥ 3.5 mg/mL (22.69 mM); Clear solution

  此方案可获得 ≥ 3.5 mg/mL (22.69 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 35.0 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: ≥ 3.5 mg/mL (22.69 mM); Clear solution

  此方案可获得 ≥ 3.5 mg/mL (22.69 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 35.0 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中，混合均匀。

• [1]. Jarvis GE, et al. Noncompetitive Inhibition of 5-HT3 Receptors by Citral, Linalool, and Eucalyptol Revealed by Nonlinear Mixed-Effects Modeling. J Pharmacol Exp Ther. 2016 Mar;356(3):549-62.

  [2]. Zeraatpisheh Z, et al. Eucalyptol induces hyperexcitability and epileptiform activity in snail neurons by inhibiting potassium channels. Eur J Pharmacol. 2015 Oct 5;764:70-8.

  [3]. Khan A, et al. 1,8-cineole (eucalyptol) mitigates inflammation in amyloid Beta toxicated PC12 cells: relevance to Alzheimer’s disease. Neurochem Res. 2014 Feb;39(2):344-52.[3]

  [4]. Caldas GF, et al. Repeated-doses and reproductive toxicity studies of the monoterpene 1,8-cineole (eucalyptol) in Wistar rats. Food Chem Toxicol. 2016 Nov;97:297-306.

The protective dose of Eucalyptol (Cineole) is determined by MTT dye-uptake method. In brief, cells (1×10⁴ per well) are seeded in 96-well tissue culture plates and allowed to adhere for 24 h in CO₂ incubator at 37°C. Cells are differentiated for the indicated time period. Thereafter, the medium is replaced with the medium containing Eucalyptol (0 to 10 μM) in different experiments for a period up to 24 h. Tetrazolium bromide salt (5 mg/mL of stock in PBS) 10 μL/well is added in 100 mL of cell suspension and plate is incubated for 4 h. At the end of incubation period, the reaction mixture is carefully taken out and 200 μL of DMSO is added to each well by pipetting up and down several times until the content gets homogenized. The plates are kept on rocker shaker for 10 min at room temperature and then read at 550 nm using microplate reader^[3].

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

Swiss mice are used in this experiment. The animals are randomly divided into two groups (n=5) and fasted overnight with free access to water. The group control receives a 1% Tween-80 aqueous solution (0.1 mL/10 g) and the other group is treated with Eucalyptol a single 2000 mg/kg dose by oral route. The animals are observed at 30, 60, 120, 180 and 240 min after oral treatment and daily for 14 days. Behavioral changes, weight, food and water consumption, clinical signs of toxicity or mortality are recorded daily^[4].

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

• [1]. Jarvis GE, et al. Noncompetitive Inhibition of 5-HT3 Receptors by Citral, Linalool, and Eucalyptol Revealed by Nonlinear Mixed-Effects Modeling. J Pharmacol Exp Ther. 2016 Mar;356(3):549-62.

  [2]. Zeraatpisheh Z, et al. Eucalyptol induces hyperexcitability and epileptiform activity in snail neurons by inhibiting potassium channels. Eur J Pharmacol. 2015 Oct 5;764:70-8.

  [3]. Khan A, et al. 1,8-cineole (eucalyptol) mitigates inflammation in amyloid Beta toxicated PC12 cells: relevance to Alzheimer’s disease. Neurochem Res. 2014 Feb;39(2):344-52.[3]

  [4]. Caldas GF, et al. Repeated-doses and reproductive toxicity studies of the monoterpene 1,8-cineole (eucalyptol) in Wistar rats. Food Chem Toxicol. 2016 Nov;97:297-306.