2. GPCR/G Protein Neuronal Signaling
  3. 5-HT Receptor
  4. RS-127445

RS-127445 是一种有效的，具有口服活性的，高亲和力选择性 5-HT2B 受体拮抗剂，pKi 为 9.5，比作用于其他受体和离子通道的选择性高 1000 倍。

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RS-127445 Chemical Structure

RS-127445 Chemical Structure

CAS No. : 199864-87-4

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10 mg ￥818
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25 mg ￥1554
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50 mg ￥2470
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Other Forms of RS-127445:

RS-127445 相关抗体

Top Publications Citing Use of Products

MCE 顾客使用本产品发表的 2 篇科研文献

查看 5-HT Receptor 亚型特异性产品:

查看所有亚型
5-HT1 Receptor 5-HT2 Receptor 5-HT3 Receptor 5-HT4 Receptor 5-HT5 Receptor 5-HT6 Receptor 5-HT7 Receptor 5-HT Receptor

  • 生物活性

  • 纯度 & 产品资料

  • 参考文献

生物活性

RS-127445 is a selective, high affinity, orally bioavailable 5-HT2B receptor antagonist with a pKi of 9.5. RS-127445 shows 1000 fold selectivity for this receptor as compared to numerous other receptor and ion channel binding sites[1].

IC50 & Target[1]

5-HT2B Receptor

9.5 nM (pKi)

细胞效力
(Cellular Effect)
Cell Line Type Value Description References
CHO-K1 IC50
0.7 nM
Compound: RS-127445
Antagonist activity at 5-HT2B receptor expressed in CHOK1 cells assessed as inhibition of serotonin-induced intracellular Ca2+ flux by aequorin luminescence assay
Antagonist activity at 5-HT2B receptor expressed in CHOK1 cells assessed as inhibition of serotonin-induced intracellular Ca2+ flux by aequorin luminescence assay
[PMID: 19307114]
CHO-K1 IC50
19 nM
Compound: RS-127445
Antagonist activity at 5-HT2B receptor expressed in CHOK1 cells assessed as inhibition of serotonin-induced intracellular Ca2+ flux by aequorin luminescence assay in presence of 4% human serum albumin
Antagonist activity at 5-HT2B receptor expressed in CHOK1 cells assessed as inhibition of serotonin-induced intracellular Ca2+ flux by aequorin luminescence assay in presence of 4% human serum albumin
[PMID: 19307114]
体外研究
(In Vitro)

RS-127445 is found to has nanomolar affinity for the 5-HT2B receptor (pKi=9.5±0.1) and 1,000 fold selectivity for this receptor as compared to numerous other receptor and ion channel binding sites. RS-127445 potently displaces [3H]-5-HT from human recombinant 5-HT2B receptors expressed in CHO-K1 cells. The affinity (pKi value) of RS-127445 for the 5-HT2B receptor is 9.5±0.1 (n=9). RS-127445 is selective for the 5-HT2B receptor, having approximately 1000 fold lower affinity for the human recombinant 5-HT2A, 5-HT2C, 5-HT5, 5-HT6 and 5-HT7 receptors, a 5-HT1A receptor in rat brain membranes, a 5-HT1B/D receptor in bovine caudate, and a monoamine uptake site in rabbit platelets. RS-127445 potently blocks the 5-HT (10 nM) evoked increases in intracellular calcium concentrations in the HEK-293 cells expressing the 5-HT2B receptor (pIC50 of 10.4±0.1). In cells expressing human recombinant 5-HT2B receptors, RS-127445 potently antagonizes 5-HT-evoked formation of inositol phosphates (pKB=9.5±0.1) and 5-HT-evoked increases in intracellular calcium (pIC10=10.4±0.1). RS-127445 also blocks 5-HT-evoked contraction of rat isolated stomach fundus (pA2B=9.5±1.1) and (±)α-methyl-5-HT-mediated relaxation of the rat jugular vein (pA2=9.9±0.3)[1].

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

RS-127445 相关抗体:
体内研究
(In Vivo)

In rats, the fraction of RS-127445 that is bioavailable via the oral or intraperitoneal routes is 14 and 60% respectively. Intraperitoneal administration of RS-127445 (5 mg/kg) produced plasma concentrations predicted to fully saturate accessible 5-HT2B receptors for at least 4 h.RS-127445 (5 mg/kg) is administered to rats by oral, intraperitoneal and intravenous routes. Peak plasma concentrations are rapidly achieved with the highest concentrations being found at the first time-point measured following intravenous and intraperitonael administration (0.08 h) and by 0.25 h following dosing by the oral route of administration. RS-127445 is cleared from plasma with an estimated terminal elimination half-life of approximately 1.7 h. The bioavailability of RS-127445, when administered by the oral and intraperitoneal routes is approximately 14 and 62% of that obtained by intravenous administration. Approximately 60% of an intraperitoneal dose and 14% of the oral dose of RS-127445 (5 mg/kg) is bioavailable[1]. RS-127445 (1-30 mg/kg), dose-dependently reduces faecal output, reaching significance at 10 and 30 mg/kg (n=6-11). In blood and brain, >98% of RS-127445 is protein-bound[2].

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

281.33

Formula

C17H16FN3
CAS 号
性状

固体

颜色

White to off-white

运输条件

Room temperature in continental US; may vary elsewhere.
储存方式

4°C, sealed storage, away from moisture

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

溶解性数据
细胞实验： 

DMSO 中的溶解度 : ≥ 100 mg/mL (355.45 mM; 吸湿的 DMSO 对产品的溶解度有显著影响，请使用新开封的 DMSO)

* "≥" means soluble, but saturation unknown.

配制储备液
浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 3.5545 mL 17.7727 mL 35.5454 mL
5 mM 0.7109 mL 3.5545 mL 7.1091 mL
查看完整储备液配制表

* 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)。-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。

  • 摩尔计算器

  • 稀释计算器

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

质量
=
浓度
×
体积
×
分子量 *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

浓度 (start)

C1

×
体积 (start)

V1

=
浓度 (final)

C2

×
体积 (final)

V2

动物实验：

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

  • 方案 一

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

    Solubility: ≥ 1 mg/mL (3.55 mM); 澄清溶液

    此方案可获得 ≥ 1 mg/mL（饱和度未知）的澄清溶液。

    以 1 mL 工作液为例，取 100 μL 10.0 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% Corn Oil

    Solubility: ≥ 1 mg/mL (3.55 mM); 澄清溶液

    此方案可获得 ≥ 1 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 10.0 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中，混合均匀。

动物溶解方案计算器
请输入动物实验的基本信息：

给药剂量

mg/kg

动物的平均体重

g

每只动物的给药体积

μL

动物数量

只
由于实验过程有损耗，建议您多配一只动物的量
请输入您的动物体内配方组成：
%
DMSO +
% 
+
%
Tween-80 +
%
Saline
如果您的动物是免疫缺陷鼠或者体弱鼠，建议 DMSO 中的在最后工作液体系中的占比尽量不超过 2%。
方案所需 助溶剂 包括：DMSO， ，均可在 MCE 网站选购。 ，Tween 80，均可在 MCE 网站选购。
计算结果
工作液所需浓度 : mg/mL
储备液配制方法 : mg 药物溶于 μL  DMSO（母液浓度为 mg/mL）。

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

您所需的储备液浓度超过该产品的实测溶解度，以下方案仅供参考，如有需要，请与 MCE 中国技术支持联系。
动物实验体内工作液的配制方法 : 取 μL DMSO 储备液，加入 μL 。 μL ，混合均匀至澄清，再加 μL Tween 80，混合均匀至澄清，再加 μL 生理盐水。
连续给药周期超过半月以上，请谨慎选择该方案。
请确保第一步储备液溶解至澄清状态，从左到右依次添加助溶剂。您可采用超声加热 （超声清洗仪，建议频次 20-40 kHz），涡旋吹打等方式辅助溶解。
纯度 & 产品资料
参考文献

RS-127445 相关分类

完整储备液配制表

* 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)。-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。

可选溶剂 浓度 溶剂体积 质量 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 3.5545 mL 17.7727 mL 35.5454 mL 88.8636 mL
5 mM 0.7109 mL 3.5545 mL 7.1091 mL 17.7727 mL
10 mM 0.3555 mL 1.7773 mL 3.5545 mL 8.8864 mL
15 mM 0.2370 mL 1.1848 mL 2.3697 mL 5.9242 mL
20 mM 0.1777 mL 0.8886 mL 1.7773 mL 4.4432 mL
25 mM 0.1422 mL 0.7109 mL 1.4218 mL 3.5545 mL
30 mM 0.1185 mL 0.5924 mL 1.1848 mL 2.9621 mL
40 mM 0.0889 mL 0.4443 mL 0.8886 mL 2.2216 mL
50 mM 0.0711 mL 0.3555 mL 0.7109 mL 1.7773 mL
60 mM 0.0592 mL 0.2962 mL 0.5924 mL 1.4811 mL
80 mM 0.0444 mL 0.2222 mL 0.4443 mL 1.1108 mL
100 mM 0.0355 mL 0.1777 mL 0.3555 mL 0.8886 mL
Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

RS-127445199864-87-4RS127445RS 1274455-HT ReceptorSerotonin Receptor5-hydroxytryptamine ReceptorInhibitorinhibitorinhibit

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