中文名称: 喹托司特钠  一键复制产品信息
英文名称: Quinotolast sodium
CAS No: 101193-62-8
分子式: C17H12N6NaO3
分子量: 371.31
Q10065 喹托司特钠 ≥98% (普西唐-psaitong)
包装规格:
1mg 5mg in glass bottle
产品描述:

基本信息

产品编号:

Q10065

产品名称:

Quinotolast sodium

CAS:

101193-62-8

 

储存条件

粉末

-20℃

四年

分子式:

C17H12N6NaO3

溶于液体

-80℃

二年

分子量:

371.31

 

 

化学名: 

sodium;4-oxo-1-phenoxy-N-(1,2,3-triaza-4-azanidacyclopenta-2,5-dien-5-yl)quinolizine-3-carboxamide

Solubility (25°C):

 

体外:

 

DMSO

 

Ethanol

 

Water

 

体内(现配现用):

 

1mg/ml表示微溶或不溶。

普西唐提供的所有化合物浓度为内部测试所得,实际溶液度可能与公布值有所偏差,属于正常的批间细微差异现象。

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。

 

制备储备液

 

浓度

 

溶液体积

质量

 

1mg

 

5mg

 

10mg

1mM

2.6932mL

13.4658mL

26.9317mL

5mM

0.5386mL

2.6932mL

5.3863mL

10mM

0.2693mL

1.3466mL

2.6932mL

 

生物活性

产品描述

一种组胺抑制剂,LTC4 和 PGD2 释放,这种作用具有浓度依赖性。

靶点

Histamine

LTC4

PGD2

 

体外研究

Quinotolast inhibits the release of histamine and the generation of leukotriene (LT) C4 and prostaglandin (PG) D2 from dispersed human lung cells.Quinotolast (100μg/mL) significantly inhibits PGD2 and LTC4 release.Quinotolast inhibits PGD2 release by 100% and LTC4 release by 54%.The inhibitory effect of Quinotolast on histamine release from dispersed lung cells is largely independent of the preincubation period,no tachyphylaxis being observed.Quinotolast shows a significant inhibition of inflammatory mediators from human dispersed lung cells.Quinotolast also shows strong inhibitory effects on histamine and peptide leukotrienes release from guinea pig lung fragments or mouse cultured mast cells.Quinotolast concentration-dependently inhibits pLTs release from cultured mast cells.The IC50 value for Quinotolast is 0.72μg/mL.

体内研究

Quinotolast potently inhibits such type I allergic reactions as passive cutaneous anaphylaxis (PCA) and anaphylactic bronchoconstriction in rats by both intravenous and oral dosing.When Quinotolast is given i.v.to rats,Quinotolast,dosedependently inhibits PCA.The doses of Quinotolast required to inhibit the reaction by 50% (ED50) is 0.0063mg/kg.Given p.o.,Quinotolast inhibits the reaction.ED50 value for Quinotolast is 0.0081mg/kg.Although almost complete inhibition is observed with Quinotolast at a dose of 0.32mg/kg,its effect is slightly attenuated at a dose of 1mg/kg.

 

推荐实验方法(仅供参考)

细胞实验:

 

Mast cells are obtained after the culture of bone marrow cells from the femurs of female BDF1 mice in the presence of conditioned medium from WEHI-3 cells containing interleukin 3.The cells are suspended with Tyrode's buffer (137mM NaCI,2.7mM KC1,1.8mM CaCl2,1mM MgCl2,0.4mM NaH2PO4,11.9mM NaHCO3,5.6mM glucose) containing 0.1% gelatin and are sensitized with mouse monoclonal anti-DNP IgE (50μg/106 cells). Then the cells are washed and resuspended with Tyrode's buffer containing 0.25% BSA.The cells (2×106 cells) are incubated for 5 min at37℃ and challenged with TNP-BSA (2ng BSA/mL).Quinotolast (0.1,1,10,100ug/mL) is added to the reaction tube simultaneously with the antigen.Ten minutes later, the reaction is stopped by the addition of EDTA (2.7mM).pLTs in the cell supernatant sre quantified as immunoreactive leukotriene C4 (iLTC4) with a leukotriene C4/D4/E4[3H] assay system.% Inhibition is calculated in each experiment from the amount of immunoreactive leukotriene C4 (iLTC4).

 

动物实验:

 

Rats

Rats (8 week-old) are used.To study the presence of tachyphylaxis by Quinotolast,Quinotolast (0.001,0.01,0.1,1,10 and 100mg/kg) is given i.v.in a large dose 30 min before challenge,and again at a smaller dose simultaneously with the antigen challenge.

保存条件:
-20℃
UN码:
HazardClass:
危害声明:
安全说明:
搜索质检报告(COA)

本计算器可帮助您计算出特定溶液中溶质的质量、溶液浓度和体积之间的关系,公式为:
质量 (g) = 浓度 (mol/L) x 体积 (L) x 分子量 (g/mol)

摩尔浓度计算公式

  • =
    *
    *
    *选择对应的单位 *空出希望得到的变量,填写另外两个变量

用本工具协助配置特定浓度的溶液,使用的计算公式为:
开始浓度 x 开始体积 = 最终浓度 x 最终体积

稀释公式

稀释公式一般简略地表示为:C1V1 = C2V2 ( 输入 输出 )

  • * = *

连续稀释计算器方程

  • 连续稀释

  • 初始浓度:
  • 稀释倍数:
  • 计算结果

  • C1=C0/X C1: LOG(C1):
    C2=C1/X C2: LOG(C2):
    C3=C2/X C3: LOG(C3):
    C4=C3/X C4: LOG(C4):
    C5=C4/X C5: LOG(C5):
    C6=C5/X C6: LOG(C6):
    C7=C6/X C7: LOG(C7):
    C8=C7/X C8: LOG(C8):
请在下列方框中输入相关信息后点击计算,可以得到母液配置方法和体内配方的制备方法:
举例:给药剂量是10 mg/kg,每只动物体重20g,给药体积100 μL, TargetMol | Animal experiments  一共给药动物10只,您使用的配方为5%TargetMol | reagent DMSO 30%PEG300 5%Tween 80 60%Saline/PBS/ddH2O, 那么您的工作液浓度为2mg/mL
母液配置方法: 2 mg 药物溶于 50 μLDMSOTargetMol | reagent  ( 母液浓度为 40 mg/mL ), 如您需要配置的浓度超过该产品的溶解度,请先与我们客服联系。
体内配方的制备方法: 取 50μLDMSOTargetMol | reagent  母液,添加 300 μLPEG300TargetMol | reagent  混匀澄清,再加 50μLTween80, 混匀澄清,再加 600μLSaline/PBS/ddH2OTargetMol | reagent ​ 混匀澄清

方案所需的各种助溶剂如: DMSO , PEG300 / PEG400 , Tween 80 , SBE-β-CD , 玉米油 等, 均可点击跳转或在网站搜索购买。
 
以上为“动物实验计算换算器”的使用方法举例,并不是具体某个试剂的配制,请根据您的实验动物和给药方式选择适当的溶解方案。
第一步:请输入基本实验信息(考虑到实验过程中的损耗,建议多配一只动物的药量)
第二步:请输入动物体内配方组成(配方适用于不溶于水的药物;不同批次药物配方比例不同,请联系普西唐客服为您提供正确的澄清溶液配方)
+
+
+

计算结果:

工作液浓度 mg/ml;

DMSO母液配制方法 mg 药物溶于 μL DMSO溶液(母液浓度 mg/mL,

体内配方配制方法μL DMSO母液,加入 μL PEG300,混匀澄清后加入μL Tween 80,混匀澄清后加入 μL Saline/PBS/ddH2O,混匀澄清。

1. 首先保证母液是澄清的;
           2. 一定要按照顺序依次将溶剂加入,进行下一步操作之前必须保证上一步操作得到的是澄清的溶液,可采用涡旋、超声或水浴加热等物理方法助溶。

剂量转换

对于不同动物的给药剂量换算,您也可以参考 更多