PEG MGF — research reference, shipped from Colombia

Presentations and visible prices

The price above is the public value per vial. Availability and batch documentation are confirmed before the quotation is accepted.

What pegylation is as a structural modification

The catalog describes PEG MGF as pegylated MGF, meaning the same MGF peptide with polyethylene glycol chains covalently attached to its structure. Pegylation is a chemical modification documented in the peptide technical literature: it consists of adding that polymer to a molecule to alter its declared physicochemical properties, such as solubility or effective molecular size. This page describes the modification itself, not an effect in an organism.

Documenting pegylation as a structural modification, rather than a functional improvement, matters for keeping this page within the chemical classification framework the catalog requires. The name PEG MGF already declares the modification in its own public name, so this page can state it without needing an additional source.

The unmodified MGF reference, within the same catalog

The catalog also offers MGF, the same peptide reference without the polyethylene glycol modification, in the same tissue repair and recovery category and the same 2 mg presentation. Having both references in the catalog allows a direct comparison: PEG MGF and MGF share the same declared base peptide, and differ in the presence or absence of the pegylation chemical modification.

This page does not describe behavioral differences between the two versions, because that information does not correspond to a verifiable structural classification but to an experimental outcome outside this page's scope. What can be stated is the difference declared in the name: one version carries the polyethylene glycol modification and the other does not.

2mg lyophilized powder: the reference presentation

PEG MGF is offered in a single presentation of 2 mg, measured by mass, which corresponds to a lyophilized powder in a vial under the criterion the catalog applies, the same physical form as the unmodified MGF reference. The current price for this presentation is shown in the commercial block of this page and should be confirmed in writing during the institutional quote.

Within the tissue repair and recovery category, PEG MGF shares commercial space with unmodified MGF and with Wolverine stack. To distinguish these references in a quote that includes more than one, it helps to state the full name and code of each, so the request does not mix the unmodified peptide with its pegylated version.

Janoshik's COA for a modified molecule

PEG MGF's certificate of analysis is issued by Janoshik Analytical, per lot, using HPLC for purity and mass spectrometry for identity. For a pegylated molecule, mass spectrometry is particularly relevant, because the effective molecular weight of a peptide with attached polyethylene glycol differs from the unmodified peptide, and that technique confirms the identity of the specific version dispatched.

This page does not declare a purity percentage, CAS number, molecular formula, or exact molecular weight for PEG MGF; pegylation also makes molecular weight a value that depends on each lot's degree of modification. All of those fields are read from the COA, available on request and subject to documentary availability.

Storing a pegylated peptide

Storage is governed by the lot's documentation, with the polyethylene glycol chain introducing no requirement different from the rest of the catalog. If that document notes 2-8 °C and protection from light, the refrigerated space should be ready before receiving the 2 mg vial.

PEG MGF is handled on a made-to-order basis, with a 15-day coordination window. Shipping fees for Bogota and for other cities in the country are set out on the site's shipping information page; delivery time is confirmed in the institutional quote and is not promised on this page. Outside Colombia, this reference ships to 5 countries (Costa Rica, Ecuador, United States, Mexico and Puerto Rico), from US$57; the rate for each country is listed on the site's international shipping page.

Quoting and purchase traceability within the category

A PEG MGF order is recorded first, the quote is confirmed in writing, and payment is coordinated afterward, with the method and total already set. Before approving the spend, the institution can compare this reference with unmodified MGF and with Wolverine stack, both from the same tissue repair and recovery category, keeping in mind that each has its own structural classification and its own lot certificate.

The purchase order does not vary: request, quote confirmed in writing, and payment at close. It helps to file that trio together with dispatch confirmation, the receiving record, and, if requested, Janoshik's certificate for the lot received.

Frequently asked questions about PEG MGF