Toreforant JNJ-38518168|cas:952494-46-1|西域试剂

Toreforant JNJ-38518168,99.82%

产品编号：Bellancom-16756| CAS NO：952494-46-1| 分子式：C₂₃H₃₂N₆| 分子量：392.54

Toreforant 是组胺 H4 (H4R) 受体一个有效的、选择性拮抗剂，人类中的 Ki 值为 8.4 nM。

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货号	包装	价格	库存与货期	购买量	操作
Bellancom-16756		￥6500.00	杭州北京（现货）
Bellancom-16756		￥10500.00	杭州北京（现货）

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Toreforant JNJ-38518168

产品介绍

Toreforant 是组胺 H4 (H4R) 受体一个有效的、选择性拮抗剂，人类中的 K_i 值为 8.4 nM。

生物活性

Toreforant is a potent and selective histamine H₄ receptor (H4R) antagonist, with a K_i at the human receptor of 8.4 nM.

体外研究

In human polymorphonuclear leukocytes, Toreforant inhibits the histamine-induced shape change of human eosinophils and produces a rightward shift in the histamine dose response curves indicating that it is acting as an antagonist of the human H4R in these primary cells. This is not an equilibrium measurement and therefore the calculation of a pA2 is complicated. The pA2 can be estimated using the shift seen the lowest concentration of antagonist. This yields a pA2 of around 7.5 consistent with the results in the transfected system. This assay can also be performed in whole blood and, as for the purified cells, Toreforant is able to inhibit the actions of histamine. The IC₅₀ values are 296 nM and 780 nM when 100 nM and 300 nM histamine are used, respectively.

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

体内研究

The animals treated with 100 mg/kg toreforant have reduced disease severity scores. The reduction in scores is similar to JNJ 28307474. A model of histamine-induced scratching in CD-1 mice (n=5 per group) is used to judge the anti-pruritic effects of Toreforant. Unlike other H4R antagonists, Toreforant is not efficacious in reducing histamine-mediated pruritus. After oral administration to rats, Toreforant-derived radioactivity is widely distributed into tissues; however, it is not quantifiable in cerebellum, cerebrum, medulla, and spinal cord in either Long Evans or Sprague Dawley rats, suggesting that drug-derived radioactivity does not cross the blood-brain barrier. Neuropathic pain models in rats are conducted with Toreforant and an H4R antagonist that does cross the blood-brain barrier, JNJ 39758979. In a rat spinal nerve ligation model JNJ 39758979 was able to significantly attenuate the mechanical allodynia induced in the model, however Toreforant has no activity.

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

体内研究

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

性状

Solid

溶解性数据

In Vitro:

DMSO : 100 mg/mL (254.75 mM; Need ultrasonic)

配制储备液

浓度溶剂体积质量	1 mg	5 mg	10 mg

1 mM	2.5475 mL	12.7376 mL	25.4751 mL
5 mM	0.5095 mL	2.5475 mL	5.0950 mL
10 mM	0.2548 mL	1.2738 mL	2.5475 mL

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 (sealed storage, away from moisture and 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 (6.37 mM); Clear solution

此方案可获得 ≥ 2.5 mg/mL (6.37 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 (6.37 mM); Clear solution

此方案可获得 ≥ 2.5 mg/mL (6.37 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 (6.37 mM); Clear solution

此方案可获得 ≥ 2.5 mg/mL (6.37 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。

*以上所有助溶剂都可在西域网站选购。

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

4°C, sealed storage, away from moisture and light

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)

参考文献

. Robin L Thurmond, Pharmacology and Clinical Activity of Toreforant, a Histamine H4 Receptor Antagonist. Annals of Pharmacology and Pharmaceutics. 21 Jan, 2017.

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产品编号(Item Number)

批号(Lot Number)

Toreforant JNJ-38518168,99.82%

Toreforant JNJ-38518168

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