A comprehensive Melanotan 1 certificate of analysis verifies sequence integrity, peptide purity, and residual solvent safety via RP-HPLC and mass spectrometry. A standard Melanotan 1 COA confirms chemical identity with a molecular weight of 1646.85 g/mol and ensures endotoxin levels remain strictly below threshold limits for preclinical evaluation. PX1 Research provides batch-specific analytical documentation for every lot of this synthetic melanocortin analog.
A comprehensive Melanotan 1 certificate of analysis verifies sequence integrity, peptide purity, and residual solvent safety via RP-HPLC and mass spectrometry. A standard Melanotan 1 COA confirms chemical identity with a molecular weight of 1646.85 g/mol and ensures endotoxin levels remain strictly below threshold limits for preclinical evaluation. PX1 Research provides batch-specific analytical documentation for every lot of this synthetic melanocortin analog.
When reviewing a Melanotan 1 certificate of analysis for laboratory use, principal investigators must look beyond simple claims of purity. A rigorous certificate of analysis (COA) serves as a quantitative chemical footprint of the specific lot in question. It confirms that the peptide sequence—a synthetic tridecapeptide analog of natural alpha-melanocyte-stimulating hormone (alpha-MSH)—matches its theoretical composition without significant triton derivatives, synthesis side-products, or truncated sequences.
To establish absolute chemical reliability, researchers evaluating Melanotan 1 30mg should verify two core analytical figures within the report: Reverse-Phase High-Performance Liquid Chromatography (RP-HPLC) chromatograms and Electrospray Ionization Mass Spectrometry (ESI-MS) spectra. RP-HPLC determines the relative purity profile by separating the target peptide from related impurities, while ESI-MS confirms the exact molecular mass (1646.85 g/mol). High-purity lots provided by PX1 Research routinely achieve greater than 99% purity as confirmed by independent, ISO 17025-accredited laboratory testing.
Melanotan 1, historically designated as Afamelanotide or [Ac-Ser-Tyr-Ser-Nle-Glu-His-D-Phe-Arg-Trp-Gly-Lys-Pro-Val-NH2], is a linear peptide analog engineered to enhance metabolic stability relative to endogenous alpha-MSH. Substitution of Met4 with Norleucine (Nle4) and L-Phe7 with D-Phe7 resists enzymatic degradation by serum proteases in vitro. In primary research literature, this compound serves as a primary tool for evaluating selective melanocortin receptor activation.
Preclinical studies suggest that Melanotan 1 acts predominantly as an agonist at the melanocortin-1 receptor (MC1R), which is expressed primarily on epidermal melanocytes. In vitro assays and animal model systems demonstrate that binding to MC1R stimulates adenylate cyclase, elevating intracellular cyclic adenosine monophosphate (cAMP). This signaling cascade drives the transcription of tyrosinase and downstream pathways involved in skin pigmentation responses. Researchers utilizing the PX1 Research library analyze these downstream biochemical markers to evaluate melanogenesis control without interfering cross-reactivity.
Interpreting a melanotan 1 coa requires a detailed reading of the raw RP-HPLC retention times and peak area integration tables. In a valid report, the main target peak should exhibit a sharp, symmetrical profile with negligible tailing. The total area under the curve (AUC) dedicated to the primary peak directly correlates to the percentage of pure peptide present relative to synthetic byproducts such as racemized enantiomers or deletion peptides.
Furthermore, mass spectrometry data on a certified Melanotan 1 COA must confirm the presence of single-charge [M+H]+ and multi-charge ions matching the precise monoisotopic mass. Any unassigned secondary peaks exceeding 0.5% total AUC indicate contamination or post-synthetic degradation. Every shipment of our catalog peptides includes accessible lot documentation detailing these raw outputs, ensuring complete visibility prior to assay execution.
In cell culture and organoid research, bacterial endotoxins (lipopolysaccharides, or LPS) can induce non-specific inflammatory signaling, confounding cellular proliferation, apoptosis, or receptor binding assays. Consequently, a complete melanotan 1 certificate of analysis must report quantitative Limulus Amebocyte Lysate (LAL) endotoxin testing results.
PX1 Research enforces strict bio-burden control protocols across all manufacturing workflows. Every batch of lyophilized Melanotan 1 is tested to confirm endotoxin levels below 0.05 EU/mg. This low-endotoxin threshold prevents cellular toxicity and guarantees that observed changes in melanocortin signaling pathways stem solely from the peptide itself rather than background bacterial contaminants.
When designing comparative binding or signaling experiments, research teams often evaluate Melanotan 1 alongside other synthetic melanocortin receptor ligands. Understanding the structural and functional distinctions between these compounds is vital for selecting the appropriate tool for specific receptor subtypes.
While Melanotan 1 demonstrates preferential selectivity for MC1R in skin pigmentation response models, Melanotan 2 10mg is a cyclic lactam analog that displays broader cross-reactivity across MC3R, MC4R, and MC5R receptors. Similarly, PT-141 10mg (Bremelanotide)—a metabolite of Melanotan 2—is primarily investigated for its central nervous system mediated pathways via MC3R and MC4R activation. In contrast, anti-inflammatory research focusing on MC1R signaling often utilizes smaller peptide fragments such as KPV 5mg. Assessing these structural variances alongside lot-specific COAs allows laboratories to select the precise analog required for their target receptor pathways.
Proper reconstitution of Melanotan 1 is essential to preserve secondary structure and prevent premature aggregation in vitro. Lyophilized peptide cakes should be reconstituted using sterile, preservative-free or bacteriostatic laboratory-grade reagents, depending on the intended assay duration.
For short-term enzymatic and cellular assays, reconstituting the lyophilized powder in sterile 0.9% sodium chloride or phosphate-buffered saline (PBS, pH 7.4) is typically recommended. When preparing stock solutions intended for multi-day protocols, adding 0.9% benzyl alcohol (bacteriostatic water) prevents microbial growth. Gently swirl or invert the vial until complete dissolution occurs; vigorous vortexing or mechanical shaking should be avoided as shear forces can disrupt fragile peptide bonds.
Lyophilized Melanotan 1 exhibits high stability when stored under controlled environmental conditions. For long-term preservation, unopened vials should be maintained at -20°C or -80°C in a desiccated environment to prevent moisture accumulation and hydrolytic degradation.
Once reconstituted into aqueous liquid solutions, the peptide's shelf life decreases significantly. Reconstituted stock aliquots should be stored at 2°C to 8°C for short-term use (up to 14 days) or sub-aliquoted into single-use microcentrifuge tubes and frozen at -20°C to avoid repeated freeze-thaw cycles. Exposure to direct UV light must be minimized, as tryptophan and tyrosine residues within the peptide chain are susceptible to photo-oxidation.
PX1 Research maintains rigorous manufacturing oversight to supply high-purity research compounds to academic, biotechnology, and institutional laboratories across North America. All peptides are synthesized in state-of-the-art, GMP-compliant facilities within the USA using solid-phase peptide synthesis (SPPS) methodologies.
Every batch undergoes comprehensive quality control testing at an independent ISO 17025 accredited laboratory prior to release. Orders are packaged in secure, temperature-monitored facilities and ship same-day (Monday through Friday) from our logistics centers in California and Arizona. This centralized supply chain infrastructure minimizes transit times and guarantees chain-of-custody integrity for temperature-sensitive reagents.
Laboratories conducting large-scale screening or long-term longitudinal studies require consistent batch-to-batch reproducibility. Variations between production lots can introduce unquantified variables into experimental datasets, undermining statistical power.
PX1 Research supports institutional procurement through dedicated wholesale lab accounts. High-volume research accounts receive lot reservation options, enabling laboratories to secure single-lot batches accompanied by a unified melanotan 1 certificate of analysis. This practice ensures absolute analytical consistency across multi-phase experimental designs.
Where can I find a verified melanotan 1 certificate of analysis?
A verified melanotan 1 certificate of analysis is available directly through PX1 Research on the product documentation hub. Every lot of Melanotan 1 includes direct access to third-party ISO 17025 analytical reports detailing RP-HPLC purity profiles, mass spectrometry verification, and endotoxin assay metrics.
What key data points should appear on a melanotan 1 coa?
A valid melanotan 1 coa must display the specific batch/lot number, manufacturer identification, molecular weight (1646.85 g/mol), amino acid sequence confirmation, an RP-HPLC chromatogram showing peak purity (>99%), ESI-MS spectrum confirming mass integrity, and quantitative LAL endotoxin testing results (<0.05 EU/mg).
What purity percentage is expected on a high-grade melanotan 1 COA?
High-grade research peptides intended for in vitro or animal studies should display a purity of 98.0% or higher via RP-HPLC. PX1 Research sets a baseline threshold of 99.0%+ purity for all distributed lots of Melanotan 1.
How does mass spectrometry validate a melanotan 1 certificate of analysis?
Electrospray Ionization Mass Spectrometry (ESI-MS) measures the mass-to-charge ratio of the ionized peptide. It confirms that the observed molecular mass matches the theoretical mass of Melanotan 1 (1646.85 g/mol), verifying that the sequence contains no truncation errors, amino acid substitutions, or heavy metal contamination.
What is the role of Melanotan 1 in laboratory research?
Melanotan 1 is classified as a synthetic melanocortin receptor agonist. It is primarily researched in preclinical and in vitro models to investigate melanocortin receptor (specifically MC1R) binding kinetics, cellular signaling pathways, adenylate cyclase activation, and downstream skin pigmentation responses.
How should Melanotan 1 be reconstituted for in vitro studies?
Melanotan 1 should be reconstituted under sterile laboratory conditions using sterile reconstituted buffers such as 0.9% sodium chloride, PBS (pH 7.4), or bacteriostatic water. The diluent should be added slowly along the inner glass wall of the vial, followed by gentle inversion to achieve complete dissolution without mechanical stress.
Why is endotoxin testing critical on a melanotan 1 coa?
Bacterial endotoxins can induce unwanted inflammatory reactions in cell cultures and animal tissue models, skewing experimental results. A COA confirming low endotoxin levels (<0.05 EU/mg) ensures observed biological responses stem entirely from the peptide mechanism rather than bacterial contaminants.
What is the storage temperature requirement for lyophilized Melanotan 1?
Lyophilized Melanotan 1 should be stored long-term at -20°C to -80°C in a desiccated environment. Reconstituted solutions should be stored at 2°C to 8°C for short-term use or sub-aliquoted and frozen at -20°C to prevent degradation from freeze-thaw cycles.
How does Melanotan 1 compare structurally to Melanotan 2?
Melanotan 1 (Afamelanotide) is a linear 13-amino-acid peptide that exhibits preferential binding selectivity for MC1R. In contrast, Melanotan 2 is a cyclic heptapeptide analog that non-selectively binds to multiple melanocortin receptors including MC3R, MC4R, and MC5R.
How quickly does PX1 Research ship Melanotan 1 orders for laboratory use?
PX1 Research processes and ships all research compound orders same-day when placed Monday through Friday before 3:00 PM EST. Shipments dispatch from our centralized distribution facilities in California and Arizona to minimize transit times for laboratory clients.
All products are sold strictly for laboratory and research use only. Not for human or veterinary use, diagnosis, treatment or consumption. Statements have not been evaluated by the FDA.