Pemetrexed (Synonyms: LY231514)

Name: Pemetrexed
Brand: MedChemExpress
SKU: HY-10820
Rating: 5.0 (26 reviews)

Cat. No.: HY-10820 Purity: 99.91%: FAQs
Data Sheet SDS COA Handling Instructions

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Pemetrexed (LY231514) is an antifolate, the K_i values of the pentaglutamate of Pemetrexed (LY231514) are 1.3, 7.2, and 65 nM for inhibits thymidylate synthase (TS), dihydrofolate reductase (DHFR), and glycinamide ribonucleotide formyltransferase (GARFT), respectively.

For research use only. We do not sell to patients.

Pemetrexed Chemical Structure

CAS No. : 137281-23-3

Size	Price	Stock	Quantity
Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO ready for reconstitution	USD 66	In-stock	Estimated Time of Arrival: December 31
Solution
10 mM * 1 mL in DMSO	USD 66	In-stock	Estimated Time of Arrival: December 31
Solid
50 mg	USD 60	In-stock	Estimated Time of Arrival: December 31
100 mg	USD 84	In-stock	Estimated Time of Arrival: December 31
200 mg		Get quote
500 mg		Get quote

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Based on 26 publication(s) in Google Scholar

Other Forms of Pemetrexed:

Pemetrexed disodium In-stock
Pemetrexed disodium hemipenta hydrate In-stock
Pemetrexed-d₅ Get quote
Pemetrexed disodium heptahydrate Get quote
Pemetrexed (Standard) Get quote

24 Publications Citing Use of MCE Pemetrexed

: Pemetrexed purchased from MedChemExpress. Usage Cited in: Theranostics. 2020 May 15;10(13):6048-6060. [Abstract]; Western blot analysis of UCHL1 levels in PEM-R cells and their parental cells. The mRNA and protein levels of UCHL1 in the PEM-R cells are significantly increased, relative to in the parental cells.

: Pemetrexed purchased from MedChemExpress. Usage Cited in: Theranostics. 2020 May 15;10(13):6048-6060. [Abstract]; Immunofluorescence assay showing the expression and intracellular location of UCHL1 in NSCLC cells. Increased UCHL1 levels are observed in both the cytoplasm and the nucleus of the PEM-R cells.

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Biological Activity
Protocol
Purity & Documentation
References
Customer Review

Description

IC₅₀ & Target

Ki: 1.3 nM (TS), 7.2 nM (DHFR), 65 nM (GARFT)^[1]

Cellular Effect

Cell Line	Type	Value	Description	References
A2780	IC₅₀	39.4 nM Compound: PMX	Antiproliferative activity against human A2780 cells after 96 hrs by Cell-Titer Blue assay Antiproliferative activity against human A2780 cells after 96 hrs by Cell-Titer Blue assay	[PMID: 29701475]
A549	IC₅₀	0.08 μM Compound: PMX	Cytotoxicity against human A549 cells assessed as growth inhibition after 72 hrs by MTT assay Cytotoxicity against human A549 cells assessed as growth inhibition after 72 hrs by MTT assay	[PMID: 25668494]
A549	IC₅₀	1.26 μM Compound: PMX	Antiproliferative activity against human A549 cells after 72 hrs by MTT assay in presence of leucovorin Antiproliferative activity against human A549 cells after 72 hrs by MTT assay in presence of leucovorin	[PMID: 27017552]
A549	IC₅₀	1260 nM Compound: PMX	Antiproliferative activity against human A549 cells assessed as reduction in cell viability after 72 hrs by MTT assay Antiproliferative activity against human A549 cells assessed as reduction in cell viability after 72 hrs by MTT assay	[PMID: 31200235]
A549	IC₅₀	3.31 μM Compound: PTX	Antiproliferative activity against human A549 cells after 24 hrs by MTT assay Antiproliferative activity against human A549 cells after 24 hrs by MTT assay	[PMID: 29807332]
HepG2	IC₅₀	1.26 μM Compound: PMX	Cytotoxicity against human HepG2 cells assessed as growth inhibition after 72 hrs by MTT assay Cytotoxicity against human HepG2 cells assessed as growth inhibition after 72 hrs by MTT assay	[PMID: 25668494]
HUVEC	IC₅₀	1.73 μM Compound: PMX	Cytotoxicity against HUVEC assessed as reduction in cell viability after 72 hrs by MTT assay Cytotoxicity against HUVEC assessed as reduction in cell viability after 72 hrs by MTT assay	[PMID: 31200235]
IGROV-1	IC₅₀	> 20 μM Compound: PMX	Anticlonogenic activity against human IGROV1 cells incubated for 24 hrs followed by compound wash out and measured after 10 days by methylene blue staining-based assay Anticlonogenic activity against human IGROV1 cells incubated for 24 hrs followed by compound wash out and measured after 10 days by methylene blue staining-based assay	[PMID: 29701475]
IGROV-1	IC₅₀	102 nM Compound: PMX, LY-231514	Antiproliferative activity against human IGROV1 cells expressing human RFC, FRalpha and PCFT assessed as reduction of viable cells after 96 hrs Antiproliferative activity against human IGROV1 cells expressing human RFC, FRalpha and PCFT assessed as reduction of viable cells after 96 hrs	[PMID: 21879757]
IGROV-1	IC₅₀	104 nM Compound: PMX	Antiproliferative activity against wild type human IGROV1 cells after 96 hrs by Cell-Titer Blue assay Antiproliferative activity against wild type human IGROV1 cells after 96 hrs by Cell-Titer Blue assay	[PMID: 29701475]
IGROV-1	IC₅₀	200 nM Compound: PMX, LY-231514	Antiproliferative activity against human IGROV1 cells expressing human RFC, FRalpha and PCFT assessed as reduction of viable cells after 96 hrs in the presence of 200 nM folic acid Antiproliferative activity against human IGROV1 cells expressing human RFC, FRalpha and PCFT assessed as reduction of viable cells after 96 hrs in the presence of 200 nM folic acid	[PMID: 21879757]
IGROV-1	IC₅₀	22.2 nM Compound: PMX	Antiproliferative activity against FRalpha knockout human IGROV1 KD10 cells after 96 hrs by Cell-Titer Blue assay Antiproliferative activity against FRalpha knockout human IGROV1 KD10 cells after 96 hrs by Cell-Titer Blue assay	[PMID: 29701475]
IGROV-1	IC₅₀	46.6 nM Compound: PMX	Antiproliferative activity against FRalpha knockout human IGROV1 KD4 cells after 96 hrs by Cell-Titer Blue assay Antiproliferative activity against FRalpha knockout human IGROV1 KD4 cells after 96 hrs by Cell-Titer Blue assay	[PMID: 29701475]
IGROV-1	IC₅₀	71 nM Compound: PMX	Antiproliferative activity against human IGROV1 cells harboring non targeted control shRNA sequence after 96 hrs by Cell-Titer Blue assay Antiproliferative activity against human IGROV1 cells harboring non targeted control shRNA sequence after 96 hrs by Cell-Titer Blue assay	[PMID: 29701475]
KB	IC₅₀	0.07 μM Compound: PMX	Cytotoxicity against human KB cells assessed as growth inhibition after 72 hrs by MTT assay Cytotoxicity against human KB cells assessed as growth inhibition after 72 hrs by MTT assay	[PMID: 25668494]
KB	IC₅₀	0.07 μM Compound: PMX	Antiproliferative activity against human KB cells after 72 hrs by MTT assay in presence of leucovorin Antiproliferative activity against human KB cells after 72 hrs by MTT assay in presence of leucovorin	[PMID: 27017552]
KB	IC₅₀	11.74 nM Compound: 6, Pemetrexed, PMX, Alimta	Inhibition of GARFTase in human KB cells assessed as incorporation of [14C]-glycine into [14C]-formyl GAR incubated 30 mins prior to [14C]-glycine addition measured after 16 hrs by radiometric assay in presence of azaserin Inhibition of GARFTase in human KB cells assessed as incorporation of [14C]-glycine into [14C]-formyl GAR incubated 30 mins prior to [14C]-glycine addition measured after 16 hrs by radiometric assay in presence of azaserin	[PMID: 24256410]
KB	IC₅₀	11.74 nM Compound: PMX, LY231514	Inhibition of GARFTase in human KB cells expressing RFC/FRalpha/PCFT assessed as incorporation of [U-14C]-glycine into [14C]-formyl glycinamide ribonucleotide incubated for 1 hr followed by [U-14C]-glycine addition measured after 16 hrs Inhibition of GARFTase in human KB cells expressing RFC/FRalpha/PCFT assessed as incorporation of [U-14C]-glycine into [14C]-formyl glycinamide ribonucleotide incubated for 1 hr followed by [U-14C]-glycine addition measured after 16 hrs	[PMID: 25602637]
KB	IC₅₀	30 nM Compound: PMX	Inhibition of GARFTase in human KB cells assessed as inhibition of incorporation of [14C]glycine into [14C]formyl GAR after 30 mins in presence of azaserine Inhibition of GARFTase in human KB cells assessed as inhibition of incorporation of [14C]glycine into [14C]formyl GAR after 30 mins in presence of azaserine	[PMID: 19371039]
KB	IC₅₀	30 μM Compound: PMX	Inhibition of GARFtase in human KB cells assessed as [14C]glycine incorporation in to [14C]FGAR in folate free RPMI medium with 2 nM LCV by in-situassay Inhibition of GARFtase in human KB cells assessed as [14C]glycine incorporation in to [14C]FGAR in folate free RPMI medium with 2 nM LCV by in-situassay	[PMID: 20085328]
KB	IC₅₀	327 nM Compound: PMX	Inhibition of DHFR in human KB cells expressing RFC/FRalpha/PCFT assessed as reduction in cell growth after 96 hrs in presence of folic acid by Cell-Titer Blue assay Inhibition of DHFR in human KB cells expressing RFC/FRalpha/PCFT assessed as reduction in cell growth after 96 hrs in presence of folic acid by Cell-Titer Blue assay	[PMID: 32503687]
KB	IC₅₀	327 nM Compound: PMX	Antiproliferative activity against human KB cells expressing human RFC/FR-alpha/PCFT assessed as reduction in cell viability measured after 96 hrs in presence of folic acid by Cell-Titer Blue assay Antiproliferative activity against human KB cells expressing human RFC/FR-alpha/PCFT assessed as reduction in cell viability measured after 96 hrs in presence of folic acid by Cell-Titer Blue assay	[PMID: 29425443]
KB	IC₅₀	327 nM Compound: PMX, pemetrexed	Growth inhibition of human KB cells expressing human RFC/FRalpha/PCFT after 96 hrs by CellTiter-blue assay in presence of folic acid Growth inhibition of human KB cells expressing human RFC/FRalpha/PCFT after 96 hrs by CellTiter-blue assay in presence of folic acid	[PMID: 24111942]
KB	IC₅₀	327 nM Compound: PMX	Cytotoxicity against human KB cells assessed as cell growth inhibition incubated up to 96 hrs in presence of 200 nM folic acid by Celltiter-blue cell viability assay Cytotoxicity against human KB cells assessed as cell growth inhibition incubated up to 96 hrs in presence of 200 nM folic acid by Celltiter-blue cell viability assay	[PMID: 25234128]
KB	IC₅₀	327 nM Compound: PMX, LY-231514	Antiproliferative activity against human KB cells expressing human RFC, FRalpha and PCFT assessed as reduction of viable cells after 96 hrs in the presence of 200 nM folic acid Antiproliferative activity against human KB cells expressing human RFC, FRalpha and PCFT assessed as reduction of viable cells after 96 hrs in the presence of 200 nM folic acid	[PMID: 21879757]
KB	IC₅₀	68 nM Compound: PMX	Inhibition of DHFR in human KB cells expressing RFC/FRalpha/PCFT assessed as reduction in cell growth after 96 hrs by Cell-Titer Blue assay Inhibition of DHFR in human KB cells expressing RFC/FRalpha/PCFT assessed as reduction in cell growth after 96 hrs by Cell-Titer Blue assay	[PMID: 32503687]
KB	IC₅₀	68 nM Compound: PMX	Antiproliferative activity against human KB cells expressing human RFC/FR-alpha/PCFT assessed as reduction in cell viability measured after 96 hrs by Cell-Titer Blue assay Antiproliferative activity against human KB cells expressing human RFC/FR-alpha/PCFT assessed as reduction in cell viability measured after 96 hrs by Cell-Titer Blue assay	[PMID: 29425443]
KB	IC₅₀	68 nM Compound: PMX, LY231514	Antiproliferative activity against human KB cells expressing RFC/FRalpha/PCFT after 96 hrs by CellTiter-Blue assay Antiproliferative activity against human KB cells expressing RFC/FRalpha/PCFT after 96 hrs by CellTiter-Blue assay	[PMID: 25602637]
KB	IC₅₀	68 nM Compound: PMX, pemetrexed	Growth inhibition of human KB cells expressing human RFC/FRalpha/PCFT after 96 hrs by CellTiter-blue assay Growth inhibition of human KB cells expressing human RFC/FRalpha/PCFT after 96 hrs by CellTiter-blue assay	[PMID: 24111942]
KB	IC₅₀	68 nM Compound: PMX, LY-231514	Antiproliferative activity against human KB cells expressing human RFC, FRalpha and PCFT assessed as reduction of viable cells after 96 hrs Antiproliferative activity against human KB cells expressing human RFC, FRalpha and PCFT assessed as reduction of viable cells after 96 hrs	[PMID: 21879757]
KB	IC₅₀	68 nM Compound: PMX	Cytotoxicity against human KB cells assessed as cell growth inhibition incubated up to 96 hrs by Celltiter-blue cell viability assay Cytotoxicity against human KB cells assessed as cell growth inhibition incubated up to 96 hrs by Celltiter-blue cell viability assay	[PMID: 25234128]
KB	IC₅₀	690 nM Compound: 6, Pemetrexed, PMX, Alimta	Cytotoxicity against human KB cells expressing human RFC/FRalpha/PCFT after 96 hrs by CellTitre-Blue fluorescence assay in presence of folic acid Cytotoxicity against human KB cells expressing human RFC/FRalpha/PCFT after 96 hrs by CellTitre-Blue fluorescence assay in presence of folic acid	[PMID: 24256410]
KB	IC₅₀	70.2 nM Compound: PMX	Antiproliferative activity against human KB cells assessed as reduction in cell viability after 72 hrs by MTT assay Antiproliferative activity against human KB cells assessed as reduction in cell viability after 72 hrs by MTT assay	[PMID: 31200235]
KB	IC₅₀	9.94 nM Compound: 6, Pemetrexed, PMX, Alimta	Cytotoxicity against human KB cells expressing human RFC/FRalpha/PCFT after 96 hrs by CellTitre-Blue fluorescence assay Cytotoxicity against human KB cells expressing human RFC/FRalpha/PCFT after 96 hrs by CellTitre-Blue fluorescence assay	[PMID: 24256410]
MCF7	IC₅₀	0.65 μM Compound: PMX	Antiproliferative activity against human MCF7 cells in folate free medium after 72 hrs in presence of leucovorin by MTT assay Antiproliferative activity against human MCF7 cells in folate free medium after 72 hrs in presence of leucovorin by MTT assay	[PMID: 28830032]
MDA-MB-231	IC₅₀	3.85 μM Compound: PTX	Antiproliferative activity against human MDA-MB-231 cells after 24 hrs by MTT assay Antiproliferative activity against human MDA-MB-231 cells after 24 hrs by MTT assay	[PMID: 29807332]
OVCAR-3	IC₅₀	6.9 μM Compound: PTX	Antiproliferative activity against human OVCAR3 cells after 24 hrs by MTT assay Antiproliferative activity against human OVCAR3 cells after 24 hrs by MTT assay	[PMID: 29807332]
R2	IC₅₀	> 1000 nM Compound: 6, Pemetrexed, PMX, Alimta	Cytotoxicity against chinese hamster R2 cells after 96 hrs by CellTitre-Blue fluorescence assay Cytotoxicity against chinese hamster R2 cells after 96 hrs by CellTitre-Blue fluorescence assay	[PMID: 24256410]
R2	IC₅₀	13.2 nM Compound: PMX	Inhibition of DHFR in Chinese Hamster MTXRII-OuaR2-4 R2 cells expressing human PCFT assessed as reduction in cell growth after 96 hrs by Cell-Titer Blue assay Inhibition of DHFR in Chinese Hamster MTXRII-OuaR2-4 R2 cells expressing human PCFT assessed as reduction in cell growth after 96 hrs by Cell-Titer Blue assay	[PMID: 32503687]
R2	IC₅₀	13.2 nM Compound: PMX, pemetrexed	Growth inhibition of Chinese hamster R2 cells expressing human PCFT4 after 96 hrs by CellTiter-blue assay Growth inhibition of Chinese hamster R2 cells expressing human PCFT4 after 96 hrs by CellTiter-blue assay	[PMID: 24111942]
R2	IC₅₀	13.2 nM Compound: PMX, LY-231514	Antiproliferative activity against chinese hamster R2 cells expressing human PCFT assessed as reduction of viable cells after 96 hrs Antiproliferative activity against chinese hamster R2 cells expressing human PCFT assessed as reduction of viable cells after 96 hrs	[PMID: 21879757]
R2	IC₅₀	138 nM Compound: PMX	Antiproliferative activity in Chinese hamster R2 cells deficient in RFC, PCFT, and FRalpha assessed as reduction in cell growth after 96 hrs by Cell-Titer Blue assay Antiproliferative activity in Chinese hamster R2 cells deficient in RFC, PCFT, and FRalpha assessed as reduction in cell growth after 96 hrs by Cell-Titer Blue assay	[PMID: 29701475]
R2	IC₅₀	22.3 nM Compound: 6, Pemetrexed, PMX, Alimta	Cytotoxicity against chinese hamster R2 cells expressing human PCFT4 after 96 hrs by CellTitre-Blue fluorescence assay Cytotoxicity against chinese hamster R2 cells expressing human PCFT4 after 96 hrs by CellTitre-Blue fluorescence assay	[PMID: 24256410]
R2	IC₅₀	4.94 nM Compound: PMX, LY-231514	Antiproliferative activity against chinese hamster R2 cells expressing human PCFT assessed as inhibition of colony formation after 10 to 14 days Antiproliferative activity against chinese hamster R2 cells expressing human PCFT assessed as inhibition of colony formation after 10 to 14 days	[PMID: 21879757]
R2	IC₅₀	42 nM Compound: PMX, LY231514	Cytotoxicity against RFC-deficient Chinese hamster R2 cells assessed as growth inhibition after 96 hrs by CellTiter-Blue assay Cytotoxicity against RFC-deficient Chinese hamster R2 cells assessed as growth inhibition after 96 hrs by CellTiter-Blue assay	[PMID: 25602637]
R2	IC₅₀	42 nM Compound: PMX	Cytotoxicity in RFC-null Chinese hamster R2 cells assessed as reduction in cell viability measured after 96 hrs by Cell-Titer Blue fluorescence analysis Cytotoxicity in RFC-null Chinese hamster R2 cells assessed as reduction in cell viability measured after 96 hrs by Cell-Titer Blue fluorescence analysis	[PMID: 27458733]
R2	IC₅₀	849 nM Compound: PMX	Cytotoxicity in RFC-null Chinese hamster R2 cells assessed as reduction in cell viability measured after 96 hrs by Cell-Titer Blue assay Cytotoxicity in RFC-null Chinese hamster R2 cells assessed as reduction in cell viability measured after 96 hrs by Cell-Titer Blue assay	[PMID: 29425443]
R2	IC₅₀	894 nM Compound: PMX	Inhibition of DHFR in Chinese Hamster MTXRII-OuaR2-4/FRalpha-null R2 cells assessed as reduction in cell growth after 96 hrs by Cell-Titer Blue assay Inhibition of DHFR in Chinese Hamster MTXRII-OuaR2-4/FRalpha-null R2 cells assessed as reduction in cell growth after 96 hrs by Cell-Titer Blue assay	[PMID: 32503687]
R2	IC₅₀	894 nM Compound: PMX, LY-231514	Antiproliferative activity against chinese hamster R2 cells assessed as reduction of viable cells after 96 hrs Antiproliferative activity against chinese hamster R2 cells assessed as reduction of viable cells after 96 hrs	[PMID: 21879757]
R2	IC₅₀	894 nM Compound: PMX	Cytotoxicity against Chinese hamster R2 cells assessed as cell growth inhibition incubated up to 96 hrs by Celltiter-blue cell viability assay Cytotoxicity against Chinese hamster R2 cells assessed as cell growth inhibition incubated up to 96 hrs by Celltiter-blue cell viability assay	[PMID: 25234128]
R2	IC₅₀	974 nM Compound: PMX	Cytotoxicity against Chinese hamster R2 cells expressing empty vector assessed as cell growth inhibition incubated up to 96 hrs by Celltiter-blue cell viability assay Cytotoxicity against Chinese hamster R2 cells expressing empty vector assessed as cell growth inhibition incubated up to 96 hrs by Celltiter-blue cell viability assay	[PMID: 25234128]
SGC-7901	IC₅₀	9.08 μM Compound: PTX	Antiproliferative activity against human SGC7901 cells after 24 hrs by MTT assay Antiproliferative activity against human SGC7901 cells after 24 hrs by MTT assay	[PMID: 29807332]
SW-620	IC₅₀	0.08 μM Compound: PMX	Antiproliferative activity against human SW620 cells after 72 hrs by MTT assay in presence of leucovorin Antiproliferative activity against human SW620 cells after 72 hrs by MTT assay in presence of leucovorin	[PMID: 27017552]
SW-620	IC₅₀	0.09 μM Compound: PMX	Antiproliferative activity against human SW620 cells in folate free medium after 72 hrs in presence of leucovorin by MTT assay Antiproliferative activity against human SW620 cells in folate free medium after 72 hrs in presence of leucovorin by MTT assay	[PMID: 28830032]
SW-620	IC₅₀	80.2 nM Compound: PMX	Antiproliferative activity against human SW620 cells assessed as reduction in cell viability after 72 hrs by MTT assay Antiproliferative activity against human SW620 cells assessed as reduction in cell viability after 72 hrs by MTT assay	[PMID: 31200235]

In Vitro

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 (K_m=1.6 μM and V_max/K_m=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 (K_i=340 nM, recombinant mouse), the pentaglutamate of LY23l5l4 is 100-fold more potent (K_i=3.4 nM), making LY231514 one of the most potent folate-based TS inhibitors^[1].

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

In Vivo

The group of mice treated with PC61 plus Pemetrexed demonstrates statistically longer survival than other groups. In a 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 no treatment^[2].

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

Clinical Trial

Molecular Weight

427.41

Formula

C₂₀H₂₁N₅O₆

CAS No.

137281-23-3

Appearance

Solid

Color

White to off-white

SMILES

O=C1NC(N)=NC2=C1C(CCC3=CC=C(C(N[C@H](C(O)=O)CCC(O)=O)=O)C=C3)=CN2

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

Powder	-20°C	3 years
	4°C	2 years
In solvent	-80°C	6 months
	-20°C	1 month

Solvent & Solubility

In Vitro:

DMSO : 250 mg/mL (584.92 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

H₂O : < 0.1 mg/mL (insoluble)

Preparing
Stock Solutions

Concentration Solvent Mass	1 mg	5 mg	10 mg

1 mM	2.3397 mL	11.6984 mL	23.3967 mL
5 mM	0.4679 mL	2.3397 mL	4.6793 mL
10 mM	0.2340 mL	1.1698 mL	2.3397 mL

View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Molarity Calculator
Dilution Calculator

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

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

This equation is commonly abbreviated as: C₁V₁ = C₂V₂

Concentration _(start)

Volume _(start)

Concentration _(final)

Volume _(final)

In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

Protocol 1

Add each solvent one by one: 10% DMSO 40% PEG300 5% Tween-80 45% Saline
Solubility: ≥ 2.08 mg/mL (4.87 mM); Clear solution

This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.
Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
Protocol 2

Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: ≥ 2.08 mg/mL (4.87 mM); Clear solution

This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
Protocol 3

Add each solvent one by one: 10% DMSO 90% Corn Oil
Solubility: ≥ 2.08 mg/mL (4.87 mM); Clear solution

This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 mg/mL) to 900 μL Corn oil, and mix evenly.

For the following dissolution methods, please prepare the working solution directly. It is recommended to prepare fresh solutions and use them promptly within a short period of time.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

Protocol 1

Add each solvent one by one: 50% PEG300 50% Saline
Solubility: 20 mg/mL (46.79 mM); Suspended solution; Need ultrasonic
Protocol 2

Add each solvent one by one: 20% SBE-β-CD in Saline
Solubility: 5 mg/mL (11.70 mM); Clear solution; Need ultrasonic

In Vivo Dissolution Calculator

Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Please enter your animal formula composition:

DMSO +

Tween-80 +

Saline

Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.

The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).

Calculation results:

Working solution concentration: mg/mL

Method for preparing stock solution: mg drug dissolved in μL DMSO (Stock solution concentration: mg/mL).

The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).

Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.

If the continuous dosing period exceeds half a month, please choose this protocol carefully.

Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.

Purity & Documentation

Purity: 99.95%

Select Batch:

Data Sheet (280 KB) SDS (560 KB)

COA (250 KB) LCMS (112 KB)

Handling Instructions (2659 KB)

References

[1]. Shih C, et al. LY231514, a pyrrolo[2,3-d]pyrimidine-based antifolate that inhibits multiple folate-requiring enzymes. Cancer Res. 1997 Mar 15;57(6):1116-23. [Content Brief]

[2]. Anraku M, et al. Synergistic antitumor effects of regulatory T cell blockade combined with pemetrexed in murine malignantmesothelioma. J Immunol. 2010 Jul 15;185(2):956-66. [Content Brief]

Kinase Assay ^[1]	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 K_m 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. MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Cell Assay ^[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 4.8×10⁴ 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]. MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Animal Administration ^[2]	Mice^[2] Female CBA mice and female NOD/SCID mice (NOD.CB17-Prkdc^scid) at 6-8 wk of age are used. Premetrexed (100 mg/kg) is given i.p. from days 4-8 (5 consecutive d) to tumor-bearing mice to explore the synergistic effect when combined with anti-CD25 Ab or IgG control. The dose and schedule used for Pemetrexed in the current study is determined based on previous studies in mice. MCE has not independently confirmed the accuracy of these methods. They are for reference only.
References	[1]. Shih C, et al. LY231514, a pyrrolo[2,3-d]pyrimidine-based antifolate that inhibits multiple folate-requiring enzymes. Cancer Res. 1997 Mar 15;57(6):1116-23. [Content Brief] [2]. Anraku M, et al. Synergistic antitumor effects of regulatory T cell blockade combined with pemetrexed in murine malignantmesothelioma. J Immunol. 2010 Jul 15;185(2):956-66. [Content Brief]

Complete Stock Solution Preparation Table

Optional Solvent	Concentration Solvent Mass	1 mg	5 mg	10 mg	25 mg

DMSO	1 mM	2.3397 mL	11.6984 mL	23.3967 mL	58.4918 mL
	5 mM	0.4679 mL	2.3397 mL	4.6793 mL	11.6984 mL
	10 mM	0.2340 mL	1.1698 mL	2.3397 mL	5.8492 mL
	15 mM	0.1560 mL	0.7799 mL	1.5598 mL	3.8995 mL
	20 mM	0.1170 mL	0.5849 mL	1.1698 mL	2.9246 mL
	25 mM	0.0936 mL	0.4679 mL	0.9359 mL	2.3397 mL
	30 mM	0.0780 mL	0.3899 mL	0.7799 mL	1.9497 mL
	40 mM	0.0585 mL	0.2925 mL	0.5849 mL	1.4623 mL
	50 mM	0.0468 mL	0.2340 mL	0.4679 mL	1.1698 mL
	60 mM	0.0390 mL	0.1950 mL	0.3899 mL	0.9749 mL
	80 mM	0.0292 mL	0.1462 mL	0.2925 mL	0.7311 mL
	100 mM	0.0234 mL	0.1170 mL	0.2340 mL	0.5849 mL

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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.

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Pemetrexed137281-23-3LY231514LY 231514LY-231514AntifolateAutophagyInhibitorinhibitorinhibit

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Pemetrexed (Synonyms: LY231514)

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