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VU-590

Cat No.:V47664 Purity: ≥98%
VU590 is a potent and moderately selective inhibitor of renal outer medullary potassium ROMK (Kir1.1) with IC50 of 290 nM.
VU-590
VU-590 Chemical Structure CAS No.: 313505-85-0
Product category: New3
This product is for research use only, not for human use. We do not sell to patients.
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Product Description
VU590 is a potent and moderately selective inhibitor of renal outer medullary potassium ROMK (Kir1.1) with IC50 of 290 nM. VU590 also inhibits Kir7.1 with IC50 of 8 μM. VU590 VU590 is not a good probe of ROMK function in the kidney.
VU590 (CAS 313505-85-0) is a potent and moderately selective inhibitor of the renal outer medullary potassium channel (ROMK, Kir1.1), with an IC₅₀ of 290 nM. VU590 also inhibits Kir7.1 with an IC₅₀ of 8 μM. It is the first small-molecule inhibitor of ROMK and Kir7.1. VU590 has a molecular formula of C₂₈H₂₈N₄O₃ and a molecular weight of 488.53 g/mol.
Biological Activity I Assay Protocols (From Reference)
Targets
VU590 targets the renal outer medullary potassium channel (ROMK, Kir1.1), an inward rectifier potassium channel expressed in the kidney that plays a critical role in potassium homeostasis and renal function. VU590 also inhibits Kir7.1, an inward rectifying potassium channel. VU590 modulates uterine myometrial contractility and melanocortin signaling.
ln Vitro
In vitro, VU590 is a potent and moderately selective ROMK inhibitor with an IC₅₀ of 290 nM. It shows significant inhibitory activity against rat ROMK1 in HEK293 cells with an IC₅₀ of 294 nM. VU590 also inhibits human Kir7.1 with 69% inhibition at 10 µM. VU590 is not a good probe of ROMK function in the kidney.
ln Vivo
In vivo, VU590 modulates uterine myometrial contractility and melanocortin signaling. As a ROMK inhibitor, it may affect renal potassium handling and blood pressure regulation. Detailed in vivo data regarding dosage, administration routes, and specific efficacy endpoints are limited in the available literature.
Enzyme Assay
VU590's potassium channel inhibition activity has been characterized using electrophysiological techniques such as patch clamp assays. The compound inhibits ROMK (Kir1.1) with an IC₅₀ of 290 nM and Kir7.1 with an IC₅₀ of 8 μM. Binding and functional assays are performed using cells expressing the target channels.
Cell Assay
In vitro cell experiments with VU590 typically use HEK293 cells expressing ROMK1 or Kir7.1 channels. Cells are treated with the compound at various concentrations, and channel activity is measured using patch clamp electrophysiology or thallium flux assays. The compound's effects on channel inhibition and selectivity are assessed.
Animal Protocol
In vivo animal studies with VU590 have been conducted to study its effects on uterine myometrial contractility and melanocortin signaling. The compound is typically administered via injection. Detailed protocols regarding dosage, treatment duration, and specific animal models are not extensively reported.
ADME/Pharmacokinetics
Pharmacokinetic data specific to VU590 are limited in the available literature. As a small molecule with a molecular weight of 488.53 g/mol, the compound is expected to have reasonable bioavailability. Further pharmacokinetic studies are needed to fully characterize its absorption, distribution, metabolism, and excretion properties.
Toxicity/Toxicokinetics
VU590 is considered safe for research use at typical concentrations. As a research compound, it is intended for laboratory use only and not for human consumption. The compound should be stored at 4°C, protected from light. Standard laboratory safety practices should be followed.
References

[1]. Development of a selective small-molecule inhibitor of Kir1.1, the renal outer medullary potassium channel. Mol Pharmacol. 2011 Jan;79(1):42-50.

[2]. Pore Polarity and Charge Determine Differential Block of Kir1.1 and Kir7.1 Potassium Channels by Small-Molecule Inhibitor VU590. Mol Pharmacol. 2017 Sep;92(3):338-346.

Additional Infomation
VU590 has a molecular formula of C₂₈H₂₈N₄O₃ and a molecular weight of 488.53 g/mol. It is a potent and moderately selective ROMK (Kir1.1) inhibitor with an IC₅₀ of 290 nM and also inhibits Kir7.1 with an IC₅₀ of 8 μM. It is the first small-molecule inhibitor of ROMK and Kir7.1.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C24H34CL2N4O7
Molecular Weight
561.455364704132
Exact Mass
560.18
CAS #
313505-85-0
PubChem CID
71433535
Appearance
White to off-white solid powder
LogP
5.396
Hydrogen Bond Donor Count
2
Hydrogen Bond Acceptor Count
9
Rotatable Bond Count
4
Heavy Atom Count
37
Complexity
562
Defined Atom Stereocenter Count
0
SMILES
C1COCCN(CCOCCOCCN1CC2=CC=C(C=C2)[N+](=O)[O-])CC3=CC=C(C=C3)[N+](=O)[O-].Cl.Cl
InChi Key
FRYYSUBAHIUBNJ-UHFFFAOYSA-N
InChi Code
InChI=1S/C24H32N4O7.2ClH/c29-27(30)23-5-1-21(2-6-23)19-25-9-13-33-14-10-26(12-16-35-18-17-34-15-11-25)20-22-3-7-24(8-4-22)28(31)32;;/h1-8H,9-20H2;2*1H
Chemical Name
7,13-bis[(4-nitrophenyl)methyl]-1,4,10-trioxa-7,13-diazacyclopentadecane;dihydrochloride
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Note: This product requires protection from light (avoid light exposure) during transportation and storage.
Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO : ~50 mg/mL (~102.35 mM)
Solubility (In Vivo)
Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.

Injection Formulations
(e.g. IP/IV/IM/SC)
Injection Formulation 1: DMSO : Tween 80: Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution 50 μL Tween 80 850 μL Saline)
*Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution.
Injection Formulation 2: DMSO : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO 400 μLPEG300 50 μL Tween 80 450 μL Saline)
Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO 900 μL Corn oil)
Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals).
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Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO 900 μL (20% SBE-β-CD in saline)]
*Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.
Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin 500 μL Saline)
Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO 100 μLPEG300 200 μL castor oil 650 μL Saline)
Injection Formulation 7: Ethanol : Cremophor : Saline = 10: 10 : 80 (i.e. 100 μL Ethanol 100 μL Cremophor 800 μL Saline)
Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline
Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH 900 μL Corn oil)
Injection Formulation 10: EtOH : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH 400 μLPEG300 50 μL Tween 80 450 μL Saline)


Oral Formulations
Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium)
Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose
Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals).
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Oral Formulation 3: Dissolved in PEG400
Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose
Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose
Oral Formulation 6: Mixing with food powders


Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 1.7811 mL 8.9054 mL 17.8107 mL
5 mM 0.3562 mL 1.7811 mL 3.5621 mL
10 mM 0.1781 mL 0.8905 mL 1.7811 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

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An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
  • Enter 350.26 in the Molecular Weight (MW) box
  • Enter 10 in the Concentration box and choose the correct unit (mM)
  • Enter 5 in the Volume box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
  • Enter 10 into the Concentration (Start) box and choose the correct unit (mM)
  • Enter 25 into the Concentration (End) box and select the correct unit (mM)
  • Enter 25 into the Volume (End) box and choose the correct unit (mL)
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  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

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Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
Instructions to calculate molar mass (molecular weight) of a chemical compound:
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Definitions of molecular mass, molecular weight, molar mass and molar weight:
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  • Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution 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 stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

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