Order KPV 10mg from Eternal Peptides, a trusted peptides provider with rigorous third-party testing by leading labs to ensure exceptional purity and reliable research outcomes. Get KPV 10mg vials at competitive pricing, with free USPS shipping for orders over $200 and dedicated support. KPV is sold for research use only.
Peptide Characteristics
| Property | Details |
| Name | KPV, Msh (11-13), (α-MSH C-terminal tripeptide fragment) |
| Sequence | Lys-Pro-Val (Lysine-Proline-Valine) |
| Molecular Formula | C₁₆H₃₀N₄O₄ |
| Molecular Weight | 342.43 g/mol |
| PubChem CID | 125672 |
| Product Form | Lyophilized powder in 10mg vials |
| Purity | ≥99%, verified via third-party laboratory analysis with lot-specific Certificates of Analysis (COA) available |
| Solubility | Highly soluble in sterile water, bacteriostatic water, or phosphate-buffered saline (PBS); recommended reconstitution at 1-5 mg/mL for optimal stability |
| Storage | Store lyophilized powder at -20°C (-4°F); reconstituted solution stable at 2-8°C (36-46°F) for up to 14 days or -20°C for extended storage |
| pH Stability | Stable across physiological pH range (6.0-8.0) |
| Receptor Binding | Does not require melanocortin receptor activation for anti-inflammatory activity |
Note: KPV represents the C-terminal tripeptide sequence of alpha-melanocyte stimulating hormone (α-MSH) and retains potent anti-inflammatory activity without the melanocortin receptor-mediated effects associated with the full-length hormone.
KPV: Handling & Storage Guidelines
Proper handling and storage of KPV is essential to maintain peptide integrity, biological activity, and experimental reproducibility throughout research protocols.
- Lyophilized Powder: Store unopened vials at -20°C (-4°F) in a freezer, protected from light and moisture. Under these conditions, lyophilized KPV remains stable for 24-36 months. Transfer vials to frozen storage upon receipt.
- Reconstitution: Reconstitute KPV using sterile water, bacteriostatic water, or phosphate-buffered saline (PBS) to achieve desired concentrations, typically 1-5 mg/mL for optimal stability and handling.
- Allow the lyophilized powder to reach room temperature before adding reconstitution solution, then gently swirl to dissolve completely. Avoid creating air bubbles or foam during reconstitution.
- Aliquots: Reconstituted KPV should be stored at 2-8°C (36-46°F) for short-term use up to 14 days. For extended storage beyond two weeks, aliquot the solution into single-use portions in sterile cryovials and store at -20°C (-4°F) or -80°C (-112°F). This aliquoting strategy prevents repeated freeze-thaw cycles that can degrade peptide integrity.
- Freeze-Thaw Cycles: Minimize freeze-thaw cycles to no more than 2-3 occurrences. Each cycle increases the risk of peptide aggregation, structural degradation, and reduced biological activity. Thaw frozen aliquots slowly at 2-8°C rather than at room temperature or using accelerated methods.
- Laboratory Safety and Compliance: Handle KPV using appropriate personal protective equipment, including gloves, lab coat, and eye protection. Work within institutional biosafety and chemical handling guidelines.
- Waste Disposal: Dispose of unused peptide solutions and materials according to institutional waste management protocols. Maintain proper documentation of peptide handling, storage conditions, and expiration tracking as part of good laboratory practices.
Note: For optimal experimental outcomes and confidence in research material quality, order bacteriostatic water (sterile water) from Eternal Peptides with your KPV.
COA / Quality Assurance
Eternal Peptides provides comprehensive Certificates of Analysis (COAs) for every KPV lot for transparency and traceability. Each COA delivers detailed analytical data essential for experimental reproducibility, regulatory compliance, and quality assurance documentation.
COA Contents:
- Peptide Identity Verification: Confirmed through high-performance liquid chromatography (HPLC) retention time matching and mass spectrometry analysis, verifying the correct molecular weight of 342.43 g/mol and tripeptide sequence (Lys-Pro-Val).
- Purity Assessment: Quantified via HPLC with UV detection, measuring the percentage of target peptide versus impurities, synthesis byproducts, or degradation products, typically demonstrating ≥98% purity for research-grade KPV.
- Sterility Testing: Conducted according to USP <71> sterility testing protocols to ensure freedom from bacterial and fungal contamination in lyophilized products.
- Endotoxin Levels: Measured via Limulus Amebocyte Lysate (LAL) assay to ensure compliance with research-grade standards, typically <1.0 EU/mg, critical for inflammatory research where endotoxin contamination could confound experimental results.
- Storage Recommendations: Tailored guidance for optimal stability based on the specific tested lot, including temperature requirements and recommended reconstitution procedures.
Eternal Peptides partners with leading independent analytical laboratories, including Janoshik and Finnrick Analytics, to conduct rigorous independent testing. This means reliable results that meet international analytical standards and support publication-quality research.
Additionally, all COAs are lot-specific, uniquely identified by batch numbers printed on product vials, and readily accessible through the Lab Tests page on our website.
Legal / Regulatory Disclaimer
KPV is strictly for laboratory research purposes only and is not approved by the FDA or any regulatory authority for human consumption, veterinary use, clinical administration, therapeutic applications, or diagnostic procedures.
The safety and efficacy of KPV in humans have not been established through controlled clinical trials meeting regulatory standards. This product is intended exclusively for qualified researchers operating within institutional review board (IRB) approved protocols and appropriate biosafety frameworks.
Purchasers are solely responsible for ensuring compliance with all applicable federal, state, and local regulations governing research peptides, as well as institutional policies. Eternal Peptides does not condone, support, or provide guidance for any non-research applications of this compound.








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