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Pemetrexed

产品编号 T0189Cas号 137281-23-3
别名 Pemetrexed acid, LY231514, 培美曲唑, LY-231514 Disodium Hydrate, 培美曲塞

Pemetrexed (LY-231514 Disodium Hydrate) acid 是一种鸟嘌呤衍生的抗肿瘤药物,可结合并抑制胸苷酸合酶、二氢叶酸还原酶和甘氨酰胺核苷酸甲酰转移酶的 Ki 分别为 1.3 nM、7.2 nM 和 65 nM。

Pemetrexed

Pemetrexed

纯度: 99.96%
产品编号 T0189 别名 Pemetrexed acid, LY231514, 培美曲唑, LY-231514 Disodium Hydrate, 培美曲塞Cas号 137281-23-3

Pemetrexed (LY-231514 Disodium Hydrate) acid 是一种鸟嘌呤衍生的抗肿瘤药物,可结合并抑制胸苷酸合酶、二氢叶酸还原酶和甘氨酰胺核苷酸甲酰转移酶的 Ki 分别为 1.3 nM、7.2 nM 和 65 nM。

规格价格库存数量
10 mg¥ 180现货
25 mg¥ 397现货
50 mg¥ 632现货
100 mg¥ 987现货
200 mg¥ 1,530现货
500 mg¥ 2,580现货
1 mL x 10 mM (in DMSO)¥ 638现货
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纯度:99.96%
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产品介绍

生物活性
产品描述
Pemetrexed (LY-231514 Disodium Hydrate), a guanine-derived antineoplastic agent, binds to and inhibits the enzyme thymidylate synthase (TS).
靶点活性
GARFT:65 nM(ki), DHFR:7.2 nM(ki), TS:1.3 nM(ki)
体外活性
Pemetrexed (LY231514) disodium is a novel classical antifolate, the antitumor activity of which may result from simultaneous and multipie inhibition of several key folate-requiring enzymes via its polyglutamated metabolites. Pemetrexed (LY231514) is one of the best substrates that is known for the enzyme FPGS (Km=1.6 μM and Vmax/Km=621). It is likely that polyglutamation and the polyglutamated metabolites of LY231514 play profound roles in determining both the selectivity and the antitumor activity of this novel agent. Whereas LY23l5l4 only moderately inhibits TS (Ki=340 nM, recombinant mouse), the pentaglutamate of LY23l5l4 is 100-fold more potent (Ki=3.4 nM), making LY231514 one of the most potent folate-based TS inhibitors[1].
体内活性
The group of mice treated with PC61 plus Pemetrexed indicates statistically longer survival than other groups. In survival analysis, significantly better survival is observed in the group of mice treated with PC61 plus Pemetrexed compare with those treated with PC61 alone, rat IgG plus Pemetrexed, or untreated[2].
激酶实验
AICARFT inhibition assays are carried out at room temperature by monitoring the formation of [6S]-5,6,7,8-tetrahydrofolate from 10-formyl-[6R,S]-5,6,7,8-tetrahydrofolate at A298. All solutions are purged with N2 gas prior to use. The reaction solution contains 33 mM Tris-Cl, pH 7.4, 25 mM KCl, 5 mM 2-Mercaptoethanol, 0.05 mM AICA ribonucleotide, and 16 nM (2 milliunits/mL) of AICARFT. 10-Formyl-[6R,S]-5,6,7,8-tetrahydrofolate concentrations of 0.037, 0.074, and 0.145 mM are used (0.61, 1.23, and 2.45 times its Km value, respectively). LY231514 is tested as an inhibitor at 0.08-0.8 mM (four concentrations). When the tri- and pentaglutamates of LY231514 are used as inhibitors, the concentrations are 0.0005-0.009 mM (eight concentrations). Enzyme assays are initiated by the addition of enzyme. Data is analyzed using the ENZFITTER program for competitive inhibition.
细胞实验
Pemetrexed is dissolved in DMSO and stored, and then diluted with cell culture medium before use[1]. Dose-response curves are generated to determine the concentration required for 50% inhibition of growth (IC50). Pemetrexed is dissolved initially in DMSO at a concentration of 4 mg/mL and further diluted with cell culture medium to the desired concentration. CCRF-CEM leukemia cells in complete medium are added to 24-well Cluster plates at a final concentration of 4.8×l04 cells/well in a total volume of 2 mL. Test compounds at various concentrations are added to duplicate wells so that the final volume of DMSO is 0.5%. The plates are incubated for 72 h at 37°C in an atmosphere of 5% CO2 in air. At the end of the incubation, cell numbers are determined on a ZBI Coulter counter. Control wells usually contain 4×105 to 6×105 cells at the end of the incubation. For several studies, IC50s are determined for each compound in the presence of either 300 μM AICA, 5 μM thymidine, 100 μM hypoxanthine, or combination of 5 μM hymidine plus 100 μM hypoxanthine[1].
别名Pemetrexed acid, LY231514, 培美曲唑, LY-231514 Disodium Hydrate, 培美曲塞
化学信息
分子量427.41
分子式C20H21N5O6
CAS No.137281-23-3
储存&溶解度
存储Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice.
溶解度信息
DMSO: 45 mg/mL (105.29 mM)
溶液配制表
DMSO
1mg5mg10mg50mg
1 mM2.3397 mL11.6984 mL23.3967 mL116.9837 mL
5 mM0.4679 mL2.3397 mL4.6793 mL23.3967 mL
10 mM0.2340 mL1.1698 mL2.3397 mL11.6984 mL
20 mM0.1170 mL0.5849 mL1.1698 mL5.8492 mL
50 mM0.0468 mL0.2340 mL0.4679 mL2.3397 mL
100 mM0.0234 mL0.1170 mL0.2340 mL1.1698 mL

计算器

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  • 稀释 计算器
  • 配液 计算器
  • 分子量 计算器

体内实验配液计算器

请在以下方框中输入您的动物实验信息后点击计算,可以得到母液配置方法和体内配方的制备方法:
TargetMol | Animal experiments比如您的给药剂量是 10 mg/kg ,每只动物体重 20 g ,给药体积 100 μLTargetMol | 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% ddH2O. 那么您的工作液浓度为 2 mg/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,请先与我们联系。
体内配方的制备方法:50μLDMSOTargetMol | reagent 母液,添加 300 μLPEG300TargetMol | reagent 混匀澄清,再加 50μLTween 80, 混匀澄清,再加 600μLddH2OTargetMol | reagent 混匀澄清

以上为“体内实验配液计算器”的使用方法举例,并不是具体某个化合物的推荐配制方式,请根据您的实验动物和给药方式选择适当的溶解方案。

1 请输入动物实验的基本信息
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2 请输入动物体内配方组成,不同的产品配方组成不同,如有配方需求,可先联系我们提供正确的体内配方。
% DMSO
%
%Tween 80
%ddH2O

剂量转换

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