| Test | Method | Limit | Result |
|---|---|---|---|
| Purity | HPLC | ≥ 99.0% | 99.29% |
| Identity | Mass spectrometry | 342.4 ± 1.0 Da | 342.7 Da |
| Net content | Quantitative HPLC | ≥ 10 mg | 10.23 mg |
| Endotoxin | LAL assay | ≤ 0.5 EU/mg | 0.04 EU/mg |
| Sterility | Membrane filtration | No growth | No growth |
| Heavy metals | ICP-MS | ≤ 10 ppm total | 0.5 ppm |
| Moisture | Karl Fischer | ≤ 8.0% | 3.1% |
α-MSH-derived tripeptide (α-MSH 11-13)
C16H30N4O4
342.43 Da · 3 residues
Tissue + immune · α-MSH-derived tripeptide (α-MSH 11-13)
10 mg to 30 mg · 3 residues · 342.43 Da
Size$6.00/mg
Quantity10+ of one compound: 40% off
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For in-vitro research use only. Not for human or animal use.
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GLP-3 RT 5 mg01Verified test results
KPV lot SA-KPV-2610 was tested Oct 8, 2026 at an independent laboratory before it shipped. Every value is printed against its limit, so a pass means something.
Certificate of analysis
99.29%
Purity by HPLC
Profile drawn from the reported purity
Purity by HPLC, identity by mass spectrometry, net content by quantitative HPLC, endotoxin by LAL, sterility by membrane filtration, heavy metals by ICP-MS and moisture by Karl Fischer. Report SA-KPV-2610-01, Oct 8, 2026. Open the lot record.
Open any lot's certificate. Your order ships from the current released lot, and its QR code opens this record.
99.29%
HPLC purity
Tested Oct 8, 2026 · 7/7 assays · sample
99.11%
HPLC purity
Tested Sep 10, 2026 · 7/7 assays · sample
02Verify your vial
Every vial label carries a QR code. Point your phone camera at it.
The code opens that lot's certificate with every assay value. No phone? Type the lot from your packing slip on Verify a lot.
Each signed certificate links to the lab's own verification page, so the report can be confirmed independently of us.
03Analytical identity
Studied in tissue-repair, cell-migration and immune-signalling models in vitro.
| Compound | α-MSH-derived tripeptide (α-MSH 11-13) |
|---|---|
| Formula | C16H30N4O4 |
| Molecular weight | 342.43 Da |
| Residues | 3 |
| Form | Lyophilised powder, 10 mg, 30 mg |
| Storage | Sealed at -20 °C, away from light and moisture |
Sequence
Side-chain composition
Every heavy atom is placed from the sequence with ideal bond lengths and angles, so the connectivity is exact. The pose is idealised (an extended chain) and is not a measured conformation. Identity for each lot is confirmed on its certificate.
Structure viewer04In the lab
KPV is the C-terminal Lys-Pro-Val end of alpha-MSH, and its receptor is not settled: it raised calcium in MC1R cells but acted outside melanocortin receptors elsewhere. In gut cells it enters via the PepT1 transporter and lowers NF-kB signaling.
Compound
KPVLys-Pro-Val, residues 11 to 13 of alpha-MSHIntestinal epithelial cells
Endpoint studied
Taken up through PepT1; nanomolar KPV lowered NF-kB and MAP kinase activation and cytokine secretion.
Dalmasso 2008 · PMID 18061177Keratinocytes
Endpoint studied
No cAMP rise; intracellular calcium rose in keratinocytes and in cells engineered to express MC1R.
Elliott 2004 · PMID 15102092Corneal epithelium
Endpoint studied
Wounds closed faster; a NO synthase inhibitor blocked this, and cultured corneal cells were more viable.
Bonfiglio 2006 · PMID 16965771Pathways as reported in the cited laboratory studies. For in-vitro research use only.
05Research history
5 milestones, each linked to its PubMed record
Peptides
Lys-Pro-Val, alpha-MSH residues 11 to 13, lowers fever in a pyrogen model, though less potently than the full hormone.
PubMed · PMID 6333677FASEB Journal
The C-terminal tripeptide alpha-MSH [11-13] reduces swelling in a contact inflammation model.
PubMed · PMID 2550304The Journal of Pharmacology and Experimental Therapeutics
KPV cuts leukocyte influx without raising cAMP, and the effect appears not to run through melanocortin receptors.
PubMed · PMID 12750433The Journal of Investigative Dermatology
In keratinocytes KPV raises intracellular calcium without a cAMP rise; MC1R-expressing cells respond the same way.
PubMed · PMID 15102092Gastroenterology
KPV enters intestinal epithelial and immune cells through PepT1 and lowers NF-kB and MAP kinase signaling.
PubMed · PMID 18061177 LatestLaboratory research only, cited for research context. Not a claim about use in people.
06Questions
About KPV, its certificate and your order.
Email [email protected], Monday to Friday. A person replies within one business day.
The current released lot, SA-KPV-2610. Scan the QR code on the vial label to open its certificate. The lot number is also on your packing slip, and the full certificate is here.
Every certificate is issued by an independent laboratory. Each lot has its own public record page with every assay value, and a link to verify the report on the lab's own site once the signed PDF is posted.
Vials are filled slightly over the labelled mass so that every vial meets it. Net content is measured on each lot and published as a number, not a pass.
Email [email protected] within 7 days with your order number and a photo and we will replace it.
Orders by 2 PM ET on a weekday ship the same day, with tracking emailed when the label prints.
No. It is sold strictly for in-vitro laboratory research and is not for human or animal use of any kind.
07Complete the box
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