KPV tripeptide explained: sequence, CAS number and formats
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KPV is a synthetic tripeptide made of three amino acids: lysine, proline and valine (Lys-Pro-Val). Its sequence corresponds to residues 11 to 13 of alpha-melanocyte-stimulating hormone (α-MSH), which makes it the C-terminal tripeptide of that hormone. This guide covers its identifiers and the listings that contain it.
KPV at a glance
| Compound | KPV |
|---|---|
| Synonyms | Lys-Pro-Val, KPV Tripeptide |
| CAS number | 67727-97-3 |
| Sequence | Lys-Pro-Val |
| Length | 3 amino acids (tripeptide) |
| Molecular formula | C16H30N4O4 |
| Molecular weight | Approximately 342.4 g/mol |
| Supplied form | White lyophilised powder, 5mg and 10mg vials |
Where does the name KPV come from?
Each amino acid has a one-letter code. K is lysine, P is proline and V is valine. Written in order, the three letters give the sequence and the name. The same convention is behind names such as GHK (Gly-His-Lys).
What does a short sequence mean for identity checks?
A tripeptide has a small, well-defined mass. For KPV that is approximately 342.4 g/mol, so a mass spectrometry result on a certificate of analysis should be consistent with that figure. Because the molecule is so small, a labelled quantity such as 10mg represents a large number of molecules compared with the same weight of a long peptide. Quantities across different compounds are therefore not directly comparable by weight alone.
Which listings contain KPV?
| Listing | KPV quantity and format |
|---|---|
| KPV | 5mg or 10mg, single-compound vial |
| Klow Blend 80mg | 10mg, premixed with GHK-Cu, BPC-157 and TB-500 |
| [3V] KPV + BPC-157 + GHK-Cu Research Set | 10mg, in its own vial |
KPV is the compound that distinguishes the KLOW blend from the GLOW blend. See peptide blends vs separate vials for the full comparison, and the guides to GHK-Cu and BPC-157 for the other compounds in the set.
What should the documentation show?
- The compound name and batch number match the vial label.
- An HPLC purity figure.
- A mass result consistent with approximately 342.4 g/mol.
- Appearance recorded as a white lyophilised powder.
Batch documents are on the COAs page.
Frequently asked questions
What does KPV stand for?
KPV is the one-letter code for the tripeptide lysine-proline-valine (Lys-Pro-Val).
What is the CAS number for KPV?
The CAS number for KPV is 67727-97-3.
What is the molecular weight of KPV?
Approximately 342.4 g/mol, with the molecular formula C16H30N4O4.
How is KPV related to alpha-MSH?
KPV corresponds to residues 11 to 13 of alpha-melanocyte-stimulating hormone, its C-terminal tripeptide.
Which blend contains KPV?
Klow Blend 80mg contains 10mg of KPV alongside GHK-Cu 50mg, BPC-157 10mg and TB-500 10mg. The GLOW blend does not contain KPV.
All Ascend Research products are sold strictly for laboratory research use only. They are not for human or animal use, and nothing in this article is medical advice.
The Ascend Research team
