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MRE-269 (ACT-333679) Prostaglandin Receptor agonist

Name: MRE-269 (ACT-333679)
Brand: Selleck Chemicals
SKU: S5819
Availability: InStock
Rating: 5 (1 reviews)

Cat.No.S5819

MRE-269 (ACT-333679) is a prostaglandin I2 (IP) receptor agonist with a binding affinity for the human IP receptor that is 130-fold greater than that for other human prostanoid receptor.

Chemical Structure

Molecular Weight: 419.52

Jump to Mechanism of Action Solubility Chemical Information, Storage & Stability Specificity

Quality Control

Batch: S581901 DMSO]84 mg/mL]false]Water]Insoluble]false]Ethanol]Insoluble]false Purity: 99.93%

99.93

Related Targets	Adrenergic Receptor AChR 5-HT Receptor Histamine Receptor Dopamine Receptor Ras GPR GluR CXCR Adenosine Receptor P2 Receptor CCR Angiotensin Receptor Hedgehog/Smoothened S1P Receptor PKA Cannabinoid Receptor cAMP Glucagon Receptor SGLT Opioid Receptor Sigma Receptor PAR Endothelin Receptor LTR Neurokinin Receptor Guanylate Cyclase PKG LPA Receptor OX Receptor
Related Products	PF-04418948 TG4-155 E7046 (ER-886406) Grapiprant (CJ-023,423)

Chemical Information, Storage & Stability

Molecular Weight	419.52	Formula	C₂₅H₂₉N₃O₃	Storage (From the date of receipt)	3 years -20°C powder
CAS No.	475085-57-5	--		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	N/A			Smiles	CC(C)N(CCCCOCC(=O)O)C1=CN=C(C(=N1)C2=CC=CC=C2)C3=CC=CC=C3

Solubility

In vitro
Batch:

DMSO : 84 mg/mL ( (200.22 mM) Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)

Water : Insoluble

Ethanol : Insoluble

Molarity Calculator

Mass	Concentration	Volume	Molecular Weight
=	×	×

Dilution Calculator Molecular Weight Calculator

In vivo Batch:
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Clear solution	5%DMSO 1 40%PEG300 2 5%Tween80 3 50%ddH2O Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	4.2mg/ml (10.01mM)	Taking the 1 mL working solution as an example, add 50 μL of 84 mg/ml clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify it; add 50 μL of Tween80 to the above system, mix evenly to clarify; then continue to add 500 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results.
Clear solution	5% DMSO 1 95% Corn oil Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	0.6mg/ml (1.43mM)	Taking the 1 mL working solution as an example, add 50 μL of 12 mg/ml clear DMSO stock solution to 950 μL of corn oil and mix evenly. The mixed solution should be used immediately for optimal results.

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)

Dosage: mg/kg Average weight of animals: g Dosing volume per animal:μL Number of animals:

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO + % + % Tween 80 + % ddH₂O

%DMSO+ %

Calculation results:

Working concentration: mg/ml;

Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH₂O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such
as vortex, ultrasound or hot water bath can be used to aid dissolving.

Mechanism of Action

Targets/IC₅₀/Ki	human IP receptor ^[1] 20 nM(Ki)
In vitro	MRE-269 bound to the human IP receptor with high affinity (binding affinity (Ki) of 20 nM) and with more than 130-fold selectivity over other prostanoid receptors (prostaglandin E receptors, EP1−4; prostaglandin D receptor, DP1; prostaglandin F2 receptor, FP; thromboxane A2 receptor, TP). In pulmonary arterial smooth muscle cells (PASMCs), MRE-269 potently induces accumulation of intracellular cAMP, leading to long-lasting (>10 h) membrane hyperpolarization (EC50 = 32 nM) which contributes to cell relaxation. It also causes long-lasting and pronounced relaxation of PASMCs^[1].
In vivo	After Oral Administration (1 mg/kg) to monkeys, the T_max (time to reach maximum observed plasma concentration), C_max (maximum observed plasma concentration), AUC_0−24h (area under the curve from 0 to 24 h after dosing) and T_1/2 (apparent terminal half-life) are 2.3 h, 105 ng/mL, 652 ng·h/mL and 5.6 h, respectively for MRE-269^[1].
References	https://pubmed.ncbi.nlm.nih.gov/26291199/

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2024-05-22)

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
NCT04175600	Active not recruiting	Hypertension Pulmonary	Actelion	January 16 2020	Phase 3
NCT03492177	Active not recruiting	Pulmonary Arterial Hypertension	Actelion	July 23 2018	Phase 2
NCT03496506	Completed	Healthy Subjects	Actelion	March 5 2018	Phase 1
NCT02791815	Completed	Healthy Subjects	Actelion	July 2016	Phase 1
NCT02770222	Completed	Healthy Subjects	Actelion	June 2016	Phase 1

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