ROMK-IN-1
ROMK-IN-1 is an orally active inhibitor of ROMK (Kir1.1) with an IC50 of 0.073 μM. ROMK-IN-1 exhibits no activity against Kir2.1, Kir4.1, Kir7.1, Nav1.5, Cav1.2, as well as the enzymes CYP3A4, CYP2D6, and CYP2C9. ROMK-IN-1 can be used in research related to hypertension.
For research use only. We do not sell to patients.
- CAS No.: 1443735-02-1
- Formula: C23H23FN8O2
- Molecular Weight:462.49
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
Biological Activity
Description
IC50 & Target
[1]|
Kir1.1 0.073 μM (IC50) |
Cellular Effect
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Cell Line
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Type | Value | Description | References |
|---|---|---|---|---|
| CHO | IC50 |
0.073 μM
Compound: 25
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Inhibition of human ROMK expressed in CHO cells after 6 mins at -70 mV holding potential by electrophysiology method
Inhibition of human ROMK expressed in CHO cells after 6 mins at -70 mV holding potential by electrophysiology method
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[PMID: 27839686] |
| HEK293 | IC50 |
0.073 μM
Compound: 16
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Inhibition of human ROMK1 expressed in HEK293 cells by Tl+ flux assay
Inhibition of human ROMK1 expressed in HEK293 cells by Tl+ flux assay
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[PMID: 31034224] |
In Vitro
ROMK-IN-1 (compound 25) potently inhibits ROMK with an IC50 of 0.073 μM, and exhibits 278-fold selectivity over hERG in electrophysiological assays[1].
ROMK-IN-1 exhibits excellent selectivity for the ROMK ion channel over the Kir2.1, Kir4.1, Kir7.1, Nav1.5, and Cav1.2 ion channels, with IC50 values greater than 30 μM for all tested off-target channels[1].
ROMK-IN-1 (10 μM) exhibits high selectivity for ROMK in a screening panel comprising 115 off-target enzyme and binding assays, with only the somatostatin receptor subtype 2 being inhibited, showing an IC50 of 4.1 μM[1].
ROMK-IN-1 (up to 50 μM) exhibits no significant inhibitory effect on CYP3A4, CYP2D6 or CYP2C9 enzymes, with an IC50 value greater than 50 μM[1].
ROMK-IN-1 (incubated for 45 min) exhibits high microsomal stability in both preclinical species and humans, with 72-89% of the parent drug remaining after 45 min of incubation[1].
ROMK-IN-1 (incubated for 90 min) exhibits extremely low in vitro metabolic levels in rhesus monkey and human hepatocytes, with 92-99% of the parent drug remaining after 90 min of incubation[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only. Further protocols information, click here.
Parmacokinetics
In Vivo
ROMK-IN-1 (intravenous infusion) does not alter the QTc interval in anesthetized guinea pigs at a mean maximum free plasma peak concentration of 83 μM [1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:Spontaneously Hypertensive Rats[1]
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Dosage:3 mg/kg; 10 mg/kg; 30 mg/kg
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Administration:p.o.; once daily for 3 days
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Result:Produced 24-hour diuresis fold-increases of 1.4, 1.6, and 1.8 at 3, 10, and 30 mg/kg, respectively.
Reduced systolic blood pressure by 9 mmHg at 3 mg/kg, 16 mmHg at 10 mg/kg, and 16 mmHg at 30 mg/kg on day 3.
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Animal Model:Guinea Pigs (anesthetized)[1]
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Dosage:Maximal average peak unbound plasma concentration of 83 μM
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Administration:i.v. infusion
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Result:Showed no significant change in QTc interval.
Chemical Information
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CAS No. 1443735-02-1
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Molecular Weight 462.49
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Formula C23H23FN8O2
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SMILES
CC1=C([C@@H]2CN3[C@](CO2)(CN(C(CC4=CC=C(C=N4)N5C=NN=N5)=O)CC3)[H])C=CC(F)=C1C#N
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Please store the product under the recommended conditions in the Certificate of Analysis.
Protocols
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Cell Cytotoxicity Assay
Cytotoxicity assays are usually based on the assessment of cell membrane damage, which can also be indirectly detected by measuring cell viability. Detection methods include MTT assay, CKK-8 assay, LDH assay and ATP assay, etc.
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Research Protocol for Cardiovascular Diseases
Cardiovascular disease can be modeled as maladaptive cardiac remodeling, where ischemic injury or pressure overload activates inflammatory signaling, fibroblast activation, extracellular-matrix deposition, cardiomyocyte hypertrophy, vascular remodeling, and progressive ventricular dysfunction. The TGF-β/SMAD axis is a central profibrotic pathway after myocardial injury and pressure overload, while innate immune and cytokine pathways regulate leukocyte recruitment, scar formation, and adverse remodeling. Key unresolved questions include which inflammatory signals are reparative versus harmful, when fibrosis is protective versus maladaptive, and whether pathway inhibition improves function without weakening necessary infarct healing or compensatory remodeling.
Purity & Documentation
References
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)