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KPV

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KPV is a synthetic tripeptide made up of three amino acids: lysine (K), proline (P), and valine (V). It has the molecular formula C16H30N4O4, a molecular weight of 342.43 g/mol, and CAS number 67727-97-3. KPV corresponds to positions 11-13 of alpha-melanocyte-stimulating hormone (alpha-MSH), a 13-amino-acid neuropeptide produced in the pituitary gland. It represents the C-terminal fragment — the last three residues at the tail end of the alpha-MSH sequence. KPV is classified as a melanocortin-derived peptide fragment. It is supplied as a white to off-white lyophilized powder, soluble in water at 1 mg/mL or greater, and requires reconstitution with bacteriostatic water before laboratory use. This product is strictly for research purposes only.

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Certificate of Analysis

Independent laboratory testing confirms purity and composition of this research peptide.

Endo Passed

99.840%
Purity
B2826041
Batch
July 2026
Date

View Certificate →

Overview

KPV is a synthetic tripeptide — a chain of three amino acids: lysine (K), proline (P), and valine (V). It has the molecular formula C16H30N4O4, a molecular weight of 342.43 g/mol, and is identified by CAS number 67727-97-3. KPV corresponds to amino acids 11 through 13 of alpha-melanocyte-stimulating hormone (alpha-MSH), a 13-amino-acid neuropeptide produced naturally in the pituitary gland.

The tripeptide was first characterized during research into the structural components of alpha-MSH, when scientists sought to identify which portions of the larger molecule were responsible for its various properties. KPV represents the C-terminal fragment — the last three amino acids at the tail end of the alpha-MSH sequence. It is classified as a melanocortin-derived peptide fragment. The compound is supplied as a white to off-white lyophilized powder, soluble in water at concentrations of 1 mg/mL or greater, and requires reconstitution with bacteriostatic water before laboratory use.

This product is strictly for research purposes only.

PubChem Reference: View compound profile on NIH PubChem

This product is strictly for research purposes only. Not approved for human or animal use.

Key Characteristics

MOLECULAR PROFILE

Formula: C16H30N4O4

Weight: 342.43 g/mol

CAS: 67727-97-3

Structure: Lysine-Proline-Valine

PHYSICAL PROPERTIES

Form: White to off-white lyophilized powder

Solubility: Water-soluble (≥1 mg/mL)

Reconstitution: Required with bacteriostatic water

Storage: Store in a cool, dry place away from light

Additional information

Weight 0.08 lbs
Dimensions 0.87 × 1.18 × 0.87 in
Peptide

KPV

Strength

10mg

CAS Number

67727-97-3

PubChem CID

125672

Purity

≥99% (third-party HPLC and mass spectrometry verified)

Form

Lyophilized powder

Storage

Store at −20°C (−4°F) for long-term storage or 4°C (39°F) for short-term storage; avoid repeated freeze-thaw cycles.

Testing

Batch-specific COA included

Origin

Manufactured in the US

Purchase Option

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