MY-5445
Based on 1 publication(s) in Google Scholar
MY-5445 is a specific inhibitor of the cyclic GMP phosphodiesterase, phosphodiesterase type 5 (PDE5), with a Ki of 1.3 μM. MY-5445 inhibits human platelet aggregation. MY-5445 is a selective modulator of ATP-binding cassette (ABC) transporter ABCG2, with anti-proliferative effect.
For research use only. We do not sell to patients.
- Purity: 99.79%
- CAS No.: 78351-75-4
- Formula: C20H14ClN3
- Molecular Weight:331.80
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Storage:
4°C, protect from light
* In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)
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Biological Activity
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Chemical Information
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Solvent & Solubility
- Purity & Documentation
- References
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Help & FAQs
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Immunology/Inflammation Compound Library
HY-L007
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Metabolism/Protease Compound Library
HY-L012
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Anti-Cancer Compound Library
HY-L025
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Anti-Cardiovascular Disease Compound Library
HY-L046
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Anti-Alzheimer's Disease Compound Library
HY-L069
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Neurodegenerative Disease-related Compound Library
HY-L086
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Lipid Metabolism Compound Library
HY-L091
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Anti-Colorectal Cancer Compound Library
HY-L103
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Coagulation and Anti-coagulation Compound Library
HY-L136
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Metabolic Enzyme Compound Library
HY-L146
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Highly Selective Inhibitors Library
HY-L158
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Anti-Drug-Resistant Compound Library
HY-L169
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Multi-Target Compound Library
HY-L176
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Bioactive Compound Library Max
HY-L181
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MCE Bioactive Compound Library
HY-L001V
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Bioactive Compound Library
HY-L001
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High-Throughput Bioactive Compound Library
HY-L205
Publications Citing Use of MedChemExpress (MCE) MY-5445
More
Biological Activity
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PDE5 1.3 μM (Ki) |
PDE5 6.7 μM (IC50) |
PDE4 37 μM (IC50) |
MY-5445 inhibits human platelet aggregation by increasing cyclic GMP content and that it provides a useful probe for elucidating the role of cyclic GMP in platelet aggregation [1].
MY-5445 selectively reverses ABCG2-mediated multidrug resistance in ABCG2-overexpressing cells[2].
MY-5445 reverses ABCG2-mediated multidrug resistance (MDR) by potentiating the cytotoxicity of an ABCG2 substrate drug in ABCG2-overexpressing multidrug-resistant cancer cells, possibly by modulating the function and/or the protein expression of ABCG2[2].
MY-5445 (3 μM; 48 hours) substantially increases the topotecan-induced apoptosis in S1-M1-80 cell[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Cell Line:Human S1 colon cancer cells, S1-M1-80 cancer cells
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Concentration:3 μM
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Incubation Time:48 hours
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Result:Enhanced drug-induced apoptosis in ABCG2-overexpressing cancer cells.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:C57BL/6J male mice[3]
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Dosage:0.5 mg/kg, 3 mg/kg
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Administration:Intraperitoneal injection, twice a day, for 15 days
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Result:Alleviated the cuff-induced allodynia.
Chemical Information
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CAS No. 78351-75-4
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Appearance Solid
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Molecular Weight 331.80
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Formula C20H14ClN3
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Color White to yellow
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SMILES
ClC1=CC(NC2=NN=C(C3=CC=CC=C3)C4=C2C=CC=C4)=CC=C1
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
4°C, protect from light
* In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)
Publications (1)
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Journal Impact Factor
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Most Recent
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Pharm Res
Liposomal Vardenafil and Linagliptin Combined with Irinotecan for Synergistic Colorectal Cancer Therapy. [Abstract]2025 Jun;42(6):935-945. PMID: 40473893
Solvent & Solubility
DMSO : 50 mg/mL (150.69 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
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 (protect from light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
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 (protect from light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
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.
Please enter the basic information of animal experiments:
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Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
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%DMSO +
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
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%+
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+%Tween-80 + +
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%Saline +
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).
Working solution concentration: 0.22 mg/mL
Method for preparing stock solution: mg drug dissolved in μL DMSO. Stock solution concentration: mg/mL. * In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)
1. Take μL DMSO stock solution;
2. Add μL .
μL , mix evenly;
3. Then add μL Tween 80, mix evenly;
4. Then add μL
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
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Data Sheet (278 KB)
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SDS (393 KB)
- English - EN (393 KB)
- Français - FR (393 KB)
- Deutsch - DE (393 KB)
- Norwegian - NO (393 KB)
- Español - ES (393 KB)
- Swedish - SV (393 KB)
- Italian - IT (393 KB)
- Korean - KR (393 KB)
- Portuguese - PT (393 KB)
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Handling Instructions (2659 KB)
References
[1]. Souness JE, et al. Role of selective cyclic GMP phosphodiesterase inhibition in the myorelaxant actions of M&B 22,948, MY-5445, vinpocetine and 1-methyl-3-isobutyl-8-(methylamino)xanthine. Br J Pharmacol. 1989 Nov;98(3):725-34. [Content Brief]
[2]. Chung-Pu Wu, et al. MY-5445, a phosphodiesterase type 5 inhibitor, resensitizes ABCG2-overexpressing multidrug-resistant cancer cells to cytotoxic anticancer drugs. Am J Cancer Res. 2020; 10(1): 164-178. [Content Brief]
[3]. Maud Bollenbach, et al. Design and synthesis of 3-aminophthalazine derivatives and structural analogues as PDE5 inhibitors: anti-allodynic effect against neuropathic pain in a mouse model. Eur J Med Chem. 2019 Sep 1;177:269-290. [Content Brief]
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 (protect from light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| DMSO | 1 mM | 3.0139 mL | 15.0693 mL | 30.1386 mL | 75.3466 mL |
| 5 mM | 0.6028 mL | 3.0139 mL | 6.0277 mL | 15.0693 mL | |
| 10 mM | 0.3014 mL | 1.5069 mL | 3.0139 mL | 7.5347 mL | |
| 15 mM | 0.2009 mL | 1.0046 mL | 2.0092 mL | 5.0231 mL | |
| 20 mM | 0.1507 mL | 0.7535 mL | 1.5069 mL | 3.7673 mL | |
| 25 mM | 0.1206 mL | 0.6028 mL | 1.2055 mL | 3.0139 mL | |
| 30 mM | 0.1005 mL | 0.5023 mL | 1.0046 mL | 2.5116 mL | |
| 40 mM | 0.0753 mL | 0.3767 mL | 0.7535 mL | 1.8837 mL | |
| 50 mM | 0.0603 mL | 0.3014 mL | 0.6028 mL | 1.5069 mL | |
| 60 mM | 0.0502 mL | 0.2512 mL | 0.5023 mL | 1.2558 mL | |
| 80 mM | 0.0377 mL | 0.1884 mL | 0.3767 mL | 0.9418 mL | |
| 100 mM | 0.0301 mL | 0.1507 mL | 0.3014 mL | 0.7535 mL |
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