Melanotan II (MT-2)
High-purity cyclic heptapeptide analytical reference material — filler-free lyophilized powder with comprehensive documentation including full residual solvents panel
HPLC Purity
BVR verified
Peptide Content
BVR verified
Molecular Weight (Da)
ESI-MS confirmed
Fillers Added
No mannitol or bulking
Full Residual Solvents Panel
Australian Laboratory Supply
CAS 121062-08-6
Product Overview
Aventris Labs supplies research-grade Melanotan II (MT-2, CAS 121062-08-6) as an analytical reference standard. This synthetic cyclic heptapeptide (C₅₀H₆₉N₁₅O₉, 1024.20 Da) features a lactam bridge between Asp² and Lys⁷, creating a stable cyclic structure. Manufactured using solid-phase peptide synthesis (SPPS) with comprehensive analytical verification including full residual solvents panel.
Primary applications: Reference standard for method development, analytical validation, peptide characterisation studies, and comparative quality control.
Documentation Included
- Batch Verification Report (BVR) – Complete batch-specific analytical data compiled by Aventris Labs
- HPLC chromatography – 99.51% purity with retention time data
- Mass spectrometry (ESI-MS) – Molecular weight confirmation (1024.20 Da)
- Peptide content assay – 85.72% by nitrogen analysis
- Mass balance – 99.09% verified
- Karl Fischer water content – 2.25%
- Acetate content – 11.12%
- Residual solvents results – Full panel, all solvents below detection limits
- Batch verification portal – QR code and online lookup system
Analytical Data (Batch Verification Report)
The following data represents typical batch results. Your batch-specific values are available in your Batch Verification Report (BVR) via the verification portal.
| Parameter | Result | Specification | Status |
|---|---|---|---|
| Purity (HPLC) | 99.51% | ≥99.0% | PASS |
| Peptide Content (N%) | 85.72% | ≥70.0% | PASS |
| Molecular Weight (ESI-MS) | 1024.20 Da | Conforms to structure | PASS |
| Mass Balance | 99.09% | 95.0-105.0% | PASS |
| Water Content (Karl Fischer) | 2.25% | ≤10.0% | PASS |
| Acetate Content | 11.12% | ≤20.0% | PASS |
| Appearance | White powder | White powder | PASS |
Residual Solvents Results
| Solvent | Result | Limit | Status |
|---|---|---|---|
| Acetonitrile | N.D. | ≤410 ppm | PASS |
| Methanol | N.D. | ≤3000 ppm | PASS |
| Methylene Chloride | N.D. | ≤600 ppm | PASS |
| N,N-Dimethylformamide | N.D. | ≤880 ppm | PASS |
| Isopropyl Ether | N.D. | ≤5000 ppm | PASS |
Peptide Sequence
Linear: Ac-Nle-Asp-His-D-Phe-Arg-Trp-Lys-NH₂
Lactam bridge: Asp²-Lys⁷
| Sequence Length | 7 amino acids (cyclic) |
| Structure | Cyclic peptide with lactam bridge (Asp²-Lys⁷) |
| Molecular Formula | C₅₀H₆₉N₁₅O₉ |
| Molecular Weight | 1024.20 Da |
| CAS Number | 121062-08-6 |
| Source | Synthetic peptide |
| Synthesis Method | Solid-phase peptide synthesis (SPPS) |
Ordering Information
Package Contents
Melanotan II lyophilized powder in sealed glass vial with batch-specific labeling and QR verification code. No fillers, mannitol, or bulking agents added.
Batch Verification Report
Complete BVR with HPLC purity, mass spectrometry, peptide content, residual solvents, and mass balance data accessible via QR code or online verification portal at aventrislabs.com/verify.
Australian Express Shipping
Fast domestic express shipping Australia-wide. If your order doesn’t arrive, we reship free — no questions asked.
Tier Pricing Available
Volume discounts for research facilities and repeat orders. Contact for institutional pricing and bulk quantities.
Quality & Verification
Batch Verification Report (BVR)
Every batch includes comprehensive analytical documentation through Aventris Labs’ verification system, presenting all manufacturer analytical data in a standardised format for full transparency.
Filler-Free Guarantee
Aventris peptides contain zero fillers. No mannitol, no bulking agents — just pure lyophilized peptide. The powder may appear smaller than competitors’ products because there’s nothing added to artificially increase volume.
Online Verification Portal
Instant batch verification via QR code or manual lookup. Access your batch-specific BVR anytime at aventrislabs.com/verify.
Australian Laboratory Supply
Aventris Labs is an Australian supplier providing research-grade peptide reference materials to universities and biotech laboratories nationwide.
Complete Specifications
| Product Name | Melanotan II (MT-2) |
| Chemical Name | Melanotan II Acetate |
| CAS Number | 121062-08-6 |
| Description | Synthetic cyclic heptapeptide with lactam bridge |
| Sequence | Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-NH₂ |
| Structure | Lactam bridge between Asp² and Lys⁷ |
| Molecular Formula | C₅₀H₆₉N₁₅O₉ |
| Molecular Weight | 1024.20 Da (ESI-MS verified) |
| Sequence Length | 7 amino acids (cyclic) |
| Physical Form | White to off-white lyophilized powder |
| Purity (HPLC) | 99.51% (typical, ≥99% specification) |
| Peptide Content | 85.72% (typical, ≥70% specification) |
| Mass Balance | 99.09% (typical, 95-105% specification) |
| Water Content | 2.25% (typical, ≤10% specification) |
| Acetate Content | 11.12% (typical, ≤20% specification) |
| Residual Solvents | All N.D. (5 solvents tested) |
| Storage Conditions | Cool, dry place protected from light; -20°C for extended storage |
| Shelf Life | 24 months when stored properly (retest date on BVR) |
| Intended Use | Analytical Reference Standard / Research Use Only |
| Regulatory Status | Not for human or veterinary use; laboratory research only |
Frequently Asked Questions
Product Specifications
What is Melanotan II?
Melanotan II (MT-2, CAS 121062-08-6) is a synthetic cyclic heptapeptide with a molecular formula of C₅₀H₆₉N₁₅O₉ and a molecular weight of 1024.20 Da. It features a lactam bridge between Asp² and Lys⁷, creating a stable cyclic structure. This product is supplied strictly as an analytical reference standard for laboratory research.
What is the CAS number for Melanotan II?
Melanotan II has CAS number 121062-08-6. This is confirmed in the Batch Verification Report along with molecular formula (C₅₀H₆₉N₁₅O₉) and molecular weight (1024.20 Da).
What analytical data is provided?
Each batch includes a comprehensive Batch Verification Report (BVR) containing all manufacturer analytical data: HPLC purity (99.51%), peptide content (85.72%), ESI-MS molecular weight confirmation (1024.20 Da), mass balance (99.09%), Karl Fischer water content (2.25%), acetate content (11.12%), and full residual solvents panel (5 solvents, all N.D.). Access via QR code or online verification portal.
How do I verify my batch?
Three methods: (1) Scan QR code on product label, (2) Click verification link in order confirmation email, (3) Visit aventrislabs.com/verify and enter batch ID. All provide instant access to your batch-specific Batch Verification Report with complete analytical data.
Why does the powder look smaller than other suppliers?
Aventris peptides are filler-free. Many suppliers add mannitol or other bulking agents to make the powder appear larger in the vial. Our vials contain only pure lyophilized peptide — nothing else. Less visible powder actually means a purer product with no unnecessary additives. Learn more at aventrislabs.com/peptide-fillers-explained.
What is the shelf life?
Typically 24 months when stored in sealed vial at -20°C or below, protected from light and moisture. Specific retest date listed on Batch Verification Report.
Regulatory & Compliance
What is the regulatory status of Melanotan II in Australia?
Melanotan II is supplied for research use only. It is NOT approved for human consumption, therapeutic use, veterinary applications, or diagnostic procedures. Purchasers are responsible for ensuring compliance with all applicable regulations.
Does Aventris provide research protocols or application guidance?
No. Aventris supplies analytical reference materials only. We do not provide reconstitution protocols, application methods, dosing information, or research design guidance. Researchers must develop protocols based on scientific literature and appropriate oversight. For technical science questions, resources such as Grok AI can assist with research-level inquiries.
Regulatory Disclaimer – Analytical Reference Material
Melanotan II is supplied as an analytical reference standard for research use only.
NOT for:
- Human consumption, administration, or therapeutic use
- Veterinary or animal health applications
- Diagnostic procedures
- Clinical trials or medical research involving human subjects (without appropriate approvals)
- Food, cosmetic, or dietary supplement applications
- Personal or consumer use of any kind
Purchaser Responsibilities:
- Verify compliance with all applicable federal, state, and local regulations
- Maintain proper laboratory safety and handling procedures
- Ensure appropriate storage, documentation, and chain of custody
- Use only for legitimate analytical/research purposes as intended
Aventris Labs Does NOT Provide:
- Medical, therapeutic, or health-related advice
- Dosing recommendations or administration protocols
- Reconstitution instructions or methods
- Research design or experimental methodologies
Order Melanotan II Analytical Reference Material
High-purity cyclic heptapeptide analytical reference material. Every order includes complete Batch Verification Report (BVR) with residual solvents panel, batch verification portal access, filler-free guarantee, and Australian domestic express shipping with free reship guarantee.
