KV-R1: structure and analysis

What it is

KV-R1 is a synthetic single-molecule agonist at three receptors — GIP, GLP-1 and glucagon. It is a clinical-stage investigational compound and is not an approved medicine in any jurisdiction.

Designing one peptide to engage three related receptors requires a sequence that is a composite rather than a copy of any single native hormone, which makes it a more complex molecule than a fragment or a simple analog.

The compound is listed under a Kovagen code. The code is the product name here, and the certificate issued against each lot specifies the material.

How it is produced

Produced synthetically and supplied lyophilized. This is a clinical-stage investigational compound and is not an approved medicine in any jurisdiction.

It is listed in this catalogue under a Kovagen code rather than a compound name. That coding is applied upstream and is deliberate; the specification for the material is the certificate issued against its lot.

Confirming identity

Identity is confirmed by mass spectrometry against the expected mass for the compound as specified, including any structural modifications intended to extend circulating half-life.

For a composite sequence of this kind, a species missing a modification is a distinct compound with a distinct mass rather than a minor variant, so the identity result is doing substantive work.

Analytical considerations

Longer, more elaborate synthetic sequences carry more coupling steps and therefore a broader set of plausible deletion and truncation products. Chromatographic resolution of closely related species is correspondingly more demanding than for a short peptide.

Because the compound is investigational rather than approved, there is no pharmacopoeial monograph to test against. The specification on its certificate is the reference, which is a reason to read that certificate rather than assume a standard.

What its certificate reports

A certificate for a lot of this material names the lot, names the issuing laboratory, and states for each parameter both the method used and the specification the result was measured against. Identity and purity are the two core results; net peptide content states how much of the fill weight is actually peptide.

A certificate belongs to a lot, not to a product line. When a new lot is released it is tested again, and the certificate published against it is that lot's certificate — a previous lot's result is never carried forward.

Research use only

This page describes structure and analysis. It makes no claim about what this compound does, and none should be inferred from it. Material is supplied for laboratory research use only: it is not a drug, food, dietary supplement, cosmetic or medical device, it is not for human or veterinary consumption, and no dosing, administration or reconstitution guidance is provided for any such use.