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MT‑2

For laboratory research use only.

$34.50
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Lab sheet

MT-2 details

Identity, purity and handling data for this compound, in one place. Tap an identifier to copy it.

Certificate of analysis
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Molecular Formula
C50H69N15O9
Molar Mass
1024.18 g/mol
CAS Number
121062-08-6
Form
Lyophilized powder
Full data sheet+
Purity
>= 99% (HPLC)

For research use only. Not for human consumption.

Overview

About MT-2

MT-2 (Melanotan II) is a synthetic analogue of alpha-melanocyte-stimulating hormone (alpha-MSH), a naturally occurring neuropeptide derived from the proopiomelanocortin (POMC) precursor. It acts as a non-selective agonist at melanocortin receptors (MC1R through MC5R), with particular research interest focused on its activity at MC1R, MC3R, and MC4R subtypes.

Read more

The melanocortin system is involved in a diverse range of physiological processes studied in the laboratory, including pigmentation pathways, energy homeostasis, immune modulation, and reproductive biology. MT-2 has been widely used as a pharmacological probe to dissect the contributions of individual melanocortin receptor subtypes to these systems in preclinical research.

MT-2 is a research compound intended exclusively for laboratory investigation. It is not approved for human or veterinary therapeutic use, and all research involving this peptide must be conducted under appropriate institutional oversight and in compliance with applicable regulations.

Research context

What MT-2 is researched for

The areas where this compound appears in the published research literature.

0105 areas

Melanocortin receptor pharmacology

MT-2 is employed as a reference agonist in melanocortin receptor binding and functional assays, enabling researchers to characterize receptor subtypes and investigate downstream signaling in cell-based models.

0205 areas

Pigmentation pathway research

MC1R agonism by MT-2 has been studied in melanocyte cell cultures to investigate eumelanin synthesis pathways, cAMP signaling, and tyrosinase activity relevant to pigmentation biology.

0305 areas

Energy balance and MC4R studies

MC4R is expressed in hypothalamic neurons involved in appetite and energy expenditure regulation. MT-2 has been used in rodent models to probe how melanocortin receptor activation influences feeding behavior and metabolic parameters.

0405 areas

Central MC4R signaling

Preclinical studies of central melanocortin-4 receptor signaling and autonomic pathways in animal models.

0505 areas

Immune modulation research

MC3R and MC1R are expressed on immune cells. Laboratory research has examined how melanocortin agonists including MT-2 influence cytokine production and inflammatory signaling in macrophage and T-cell models.

Methodology

How MT-2 is studied

  1. 01Method 1In cell culture systems, MT-2 is applied to receptor-expressing cell lines at defined concentrations to generate concentration-response curves for cAMP…+

    In cell culture systems, MT-2 is applied to receptor-expressing cell lines at defined concentrations to generate concentration-response curves for cAMP accumulation and receptor internalization, providing data on potency and efficacy at each MC receptor subtype.

  2. 02Method 2In vivo rodent studies have been used to investigate the behavioral and physiological effects of MC receptor activation.+

    In vivo rodent studies have been used to investigate the behavioral and physiological effects of MC receptor activation. Central administration (intracerebroventricular) and peripheral administration designs allow researchers to distinguish central from peripheral contributions to observed outcomes.

  3. 03Method 3Competitive binding assays using radiolabeled or fluorescent ligands characterize MT-2's affinity across the five MC receptor subtypes, providing selectivity…+

    Competitive binding assays using radiolabeled or fluorescent ligands characterize MT-2's affinity across the five MC receptor subtypes, providing selectivity data that guides interpretation of in vivo findings and comparison to more selective tool compounds.

Storage protocols

MT-2 storage and handling

Full handling protocol+

Store lyophilized MT-2 at -20 C or below, protected from light and moisture. The lyophilized form is stable for extended periods under these conditions. Reconstitute in bacteriostatic water or sterile saline using standard aseptic technique. Store reconstituted solutions at 4 C for short-term use or aliquot and freeze at -80 C. Minimize freeze-thaw cycles to preserve peptide integrity. All storage and handling should adhere to institutional biosafety and chemical hygiene protocols.

Ordering & shipping

Buy MT-2 online

MT-2 (Melanotan II) for sale from Optimum ReGen Peptides, a US research-peptide company with a storefront in Medford, Oregon. It is in stock, priced from $50. Every order ships 2-Day Priority Air, a $13 flat rate anywhere in the US, with tracking, or can be picked up at the store.

MT-2 is supplied as lyophilized powder, for laboratory and research use only, not for human consumption.

FAQ

MT-2 FAQ

What is the receptor selectivity profile of MT-2?
MT-2 is a non-selective melanocortin receptor agonist with nanomolar affinity across MC1R, MC3R, MC4R, and MC5R. Researchers requiring selectivity for a single subtype typically use more selective tool compounds alongside MT-2 as a reference agonist.
How does MT-2 differ from alpha-MSH structurally?
MT-2 contains a cyclic structure (achieved by lactam bridge), a D-phenylalanine substitution, and an N-terminal acetylation of norleucine. These modifications increase receptor binding affinity and metabolic stability relative to the linear native peptide.
What cell models are commonly used in MT-2 receptor studies?
HEK293 cells transfected with individual MC receptor subtypes are standard for binding and cAMP assays. Melanocyte cell lines (B16-F10, primary human melanocytes) are used for pigmentation pathway studies.
Is MT-2 the same as Melanotan 1 (MT-1)?
No. Melanotan 1 is a linear alpha-MSH analogue with some MC1R selectivity, developed specifically for pigmentation research. MT-2 is a cyclic analogue with broader MC receptor activity and has been studied across a wider range of research contexts.
What is the difference between MT-2 and PT-141?
They are closely related cyclic melanocortin peptides with the same ring and N-terminus. PT-141 ends in a free carboxylic acid where MT-2 ends in an amide, so their formulas differ: C50H69N15O9 (1024.2 g/mol) for MT-2 and C50H68N14O10 (1025.2 g/mol) for PT-141. Both act at melanocortin receptors and are studied separately.
Research library

MT-2 research guides

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