MSC-4381 (Synonyms: MCT4-IN-1)

Name: MSC-4381
Brand: MedChemExpress
SKU: HY-132301
Rating: 4.5 (1 reviews)

Cat. No.: HY-132301 Purity: 98.89%: FAQs
Data Sheet SDS COA Handling Instructions

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MSC-4381 (MCT4-IN-1) is an orally active and selective monocarboxylate transporter 4 (MCT4/SLC16A3) inhibitor with an IC₅₀ of 77 nM and a K_i of 11 nM. MSC-4381 targets to the cytosolic domain of MCT4. MSC-4381 results in lactate efflux inhibition and reduction of cellular viability in MCT4 high expressing cells. MSC-4381 has the potential for MCT4 transporter inhibition research. MSC-4381 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

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

MSC-4381 Chemical Structure

CAS No. : 2445185-57-7

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10 mM * 1 mL in DMSO ready for reconstitution	USD 225	In-stock	Estimated Time of Arrival: December 31
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10 mM * 1 mL in DMSO	USD 225	In-stock	Estimated Time of Arrival: December 31
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5 mg	USD 190	In-stock	Estimated Time of Arrival: December 31
10 mg	USD 290	In-stock	Estimated Time of Arrival: December 31
25 mg	USD 500	In-stock	Estimated Time of Arrival: December 31
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Customer Review

Based on 1 publication(s) in Google Scholar

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MCT1 MCT2 MCT4

Biological Activity
Purity & Documentation
References
Customer Review

Description

MSC-4381 (MCT4-IN-1) is an orally active and selective monocarboxylate transporter 4 (MCT4/SLC16A3) inhibitor with an IC₅₀ of 77 nM and a K_i of 11 nM. MSC-4381 targets to the cytosolic domain of MCT4. MSC-4381 results in lactate efflux inhibition and reduction of cellular viability in MCT4 high expressing cells. MSC-4381 has the potential for MCT4 transporter inhibition research^[1]. MSC-4381 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

IC₅₀ & Target

MCT4

77 nM (IC₅₀)

MCT4

11 nM (Ki)

Cellular Effect

Cell Line	Type	Value	Description	References
MDA-MB-231	IC₅₀	1 nM Compound: 18n	Cytotoxicity against human MDA-MB-231 cells assessed as reduction in intracellular lactate accumulation preincubated for 30 mins followed by D(+)glucose and measured after 4 hrs by UHPLC-ESI-Q-Orbitrap-MS analysis Cytotoxicity against human MDA-MB-231 cells assessed as reduction in intracellular lactate accumulation preincubated for 30 mins followed by D(+)glucose and measured after 4 hrs by UHPLC-ESI-Q-Orbitrap-MS analysis	[PMID: 34382802]
MDA-MB-231	IC₅₀	11 nM Compound: 18n	Cytotoxicity against human MDA-MB-231 cells assessed as inhibition of cell growth incubated for 6 days by MTS assay Cytotoxicity against human MDA-MB-231 cells assessed as inhibition of cell growth incubated for 6 days by MTS assay	[PMID: 34382802]
MIA PaCa-2	IC₅₀	> 25000 nM Compound: 18n	Cytotoxicity against human MIA PaCa-2 cells assessed as reduction in intracellular lactate accumulation preincubated for 30 mins followed by D(+)glucose and measured after 4 hrs by UHPLC-ESI-Q-Orbitrap-MS analysis Cytotoxicity against human MIA PaCa-2 cells assessed as reduction in intracellular lactate accumulation preincubated for 30 mins followed by D(+)glucose and measured after 4 hrs by UHPLC-ESI-Q-Orbitrap-MS analysis	[PMID: 34382802]
MIA PaCa-2	IC₅₀	4720 nM Compound: 18n	Cytotoxicity against human MIA PaCa-2 cells assessed as inhibition of cell growth incubated for 6 days by MTS assay Cytotoxicity against human MIA PaCa-2 cells assessed as inhibition of cell growth incubated for 6 days by MTS assay	[PMID: 34382802]
NCI-H358	IC₅₀	3 nM Compound: 18n	Cytotoxicity against human NCI-H358 cells assessed as reduction in intracellular lactate accumulation preincubated for 30 mins followed by D(+)glucose and measured after 4 hrs by UHPLC-ESI-Q-Orbitrap-MS analysis Cytotoxicity against human NCI-H358 cells assessed as reduction in intracellular lactate accumulation preincubated for 30 mins followed by D(+)glucose and measured after 4 hrs by UHPLC-ESI-Q-Orbitrap-MS analysis	[PMID: 34382802]
RT-4	IC₅₀	638 nM Compound: 18n	Cytotoxicity against human RT-4 cells assessed as reduction in intracellular lactate accumulation preincubated for 30 mins followed by D(+)glucose and measured after 4 hrs by UHPLC-ESI-Q-Orbitrap-MS analysis Cytotoxicity against human RT-4 cells assessed as reduction in intracellular lactate accumulation preincubated for 30 mins followed by D(+)glucose and measured after 4 hrs by UHPLC-ESI-Q-Orbitrap-MS analysis	[PMID: 34382802]
SNU-398	IC₅₀	> 25000 nM Compound: 18n	Cytotoxicity against human SNU-398 cells assessed as reduction in intracellular lactate accumulation preincubated for 30 mins followed by D(+)glucose and measured after 4 hrs by UHPLC-ESI-Q-Orbitrap-MS analysis Cytotoxicity against human SNU-398 cells assessed as reduction in intracellular lactate accumulation preincubated for 30 mins followed by D(+)glucose and measured after 4 hrs by UHPLC-ESI-Q-Orbitrap-MS analysis	[PMID: 34382802]

In Vitro

MSC-4381 (compound 18n) inhibits lactate efflux in the MDA-MB-231 cell line with an IC₅₀ of 1 nM. The on-target activity is confirmed with a K_i of 11 nM by fluorescence cross-correlation spectroscopy (FCCS)^[1].
MSC-4381 does not inhibit lactate efflux to a similar extent in SNU-398 and MiaPaca2, and only 600-fold less in RT-4 cell lines^[1].

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

In Vivo

MSC-4381 (compound 18n; 30 mg/kg; PO; single dose) only combined with MCT1/2 inhibitor exhibits a significant tumoral intracellular lactate accumulation^[1].
MSC-4381 (30 mg/kg/day; for 15 days) shows no significant antitumor activity^[1].
MSC-4381 (0.2 mg/kg; iv) has a T_1/2 of 1 hours, a CL of 0.33 L/h kg, a C_max of 489 ng/mL and a V_ss of 0.4 L/kg for mice^[1].

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

Animal Model:	MC38 tumor-bearing C57/BL6 mice^[1]
Dosage:	30 mg/kg
Administration:	PO; single dose
Result:	Only combined with MCT1/2 inhibitor exhibited a significant tumoral intracellular lactate accumulation.

Animal Model:	Mice^[1]
Dosage:	0.2 mg/kg (Pharmacokinetic Analysis)
Administration:	IV
Result:	Had a T_1/2 of 1 hours, a CL of 0.33 L/h•kg, a C_max of 489 ng/mL and a V_ss of 0.4 L/kg for mice.

Molecular Weight

537.97

Formula

C₂₆H₂₀ClN₃O₆S

CAS No.

2445185-57-7

Appearance

Solid

Color

White to yellow

SMILES

O=C(C1=NC=C(C#CC2=CC(Cl)=CC=C2NS(=O)(C3=C4N=CC=CC4=C(OCC)C=C3)=O)C(OC)=C1)O

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 : 83.33 mg/mL (154.90 mM; ultrasonic and warming and heat to 60°C; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions

Concentration Solvent Mass	1 mg	5 mg	10 mg

1 mM	1.8588 mL	9.2942 mL	18.5884 mL
5 mM	0.3718 mL	1.8588 mL	3.7177 mL
10 mM	0.1859 mL	0.9294 mL	1.8588 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 (3.87 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.

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: 98.89%

Select Batch:

Data Sheet (276 KB) SDS (252 KB)

COA (252 KB) HNMR (271 KB) RP-HPLC (278 KB)

Handling Instructions (2659 KB)

References

[1]. Timo Heinrich, et al. Discovery of 5-{2-[5-Chloro-2-(5-ethoxyquinoline-8-sulfonamido)phenyl]ethynyl}-4-methoxypyridine-2-carboxylic Acid, a Highly Selective in Vivo Useable Chemical Probe to Dissect MCT4 Biology. J Med Chem. 2021 Aug 26;64(16):11904-11933. [Content Brief]

Complete Stock Solution Preparation Table

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

DMSO	1 mM	1.8588 mL	9.2942 mL	18.5884 mL	46.4710 mL
	5 mM	0.3718 mL	1.8588 mL	3.7177 mL	9.2942 mL
	10 mM	0.1859 mL	0.9294 mL	1.8588 mL	4.6471 mL
	15 mM	0.1239 mL	0.6196 mL	1.2392 mL	3.0981 mL
	20 mM	0.0929 mL	0.4647 mL	0.9294 mL	2.3235 mL
	25 mM	0.0744 mL	0.3718 mL	0.7435 mL	1.8588 mL
	30 mM	0.0620 mL	0.3098 mL	0.6196 mL	1.5490 mL
	40 mM	0.0465 mL	0.2324 mL	0.4647 mL	1.1618 mL
	50 mM	0.0372 mL	0.1859 mL	0.3718 mL	0.9294 mL
	60 mM	0.0310 mL	0.1549 mL	0.3098 mL	0.7745 mL
	80 mM	0.0232 mL	0.1162 mL	0.2324 mL	0.5809 mL
	100 mM	0.0186 mL	0.0929 mL	0.1859 mL	0.4647 mL

MSC-4381 Related Classifications

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:

MSC-43812445185-57-7MCT4-IN-1MSC4381MSC 4381Monocarboxylate TransporterorallyMCT4SLC16A3cytosoliclactateeffluxMDA-MB-231SNU-398MiaPaca2Inhibitorinhibitorinhibit

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MSC-4381 (Synonyms: MCT4-IN-1)

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MSC-4381 Related Antibodies

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Biological Activity

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References

Customer Review

MSC-4381 Related Antibodies

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Complete Stock Solution Preparation Table

MSC-4381 Related Classifications

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