1. Core Product Specifications

Product Name: Melanotan II
Alias: Melanotan2, MT-Ⅱ, MTII, Melanotan II Acetate (MT-2)
CAS No.: 121062-08-6
Chemical Name: AC-NLE-CYCLO[(BETA-D)-HFRW-(EPSILON-K)]-NH2
Peptide Type: Synthetic cyclic melanocortin peptide, non-selective MC receptor agonist
Molecular Formula: C??H??N??O?
Molecular Weight: 1024.18 Da
Appearance: White to off-white lyophilized crystalline powder, odorless, non-caking, uniform color with ultra-low impurities
Purity: ≥98.0% (HPLC, research grade)
Form: Free peptide / Acetate salt optional (acetate form for better stability)
Moisture Content: ≤2.0%
Heavy Metals: ≤10ppm
Endotoxin: ≤0.1EU/mg
Residue on Ignition: ≤0.1%
Solubility: Freely soluble in pure water and aqueous buffer solutions, forming clear, stable and precipitate-free solutions
Transport Condition: Room temperature light-proof transportation
Storage Condition: Long-term storage of dry powder at -20℃ sealed, dry and dark; aliquot liquid solution and store at -20℃, strictly avoid repeated freeze-thaw cycles to prevent bioactivity degradation
Production Technology: Standard solid-phase peptide synthesis (SPPS), precise cyclic structure modification, multi-stage high-precision HPLC purification, low-temperature vacuum freeze-drying technology
Core Bioactivity: Melanogenesis stimulation, melanocortin receptor activation, tanning effect, neuroendocrine regulation, sexual function modulation, anti-inflammatory
Shelf Life: 24 months under standard -20℃ sealed and dry storage conditions
Usage Restriction: For scientific research and preclinical drug development only, not for human clinical diagnosis or treatment