CHEMICAL NAME: Ac-Nle-Asp-His-D-Phe-Arg-Trp-Lys-NH2
MOLECULAR FORMULA: C50H69N15O9
CAS NUMBER: 121062-08-6
MOLECULAR WEIGHT: 1024.180
Melanotan II is a synthetic analog of the naturally occurring melanocortin peptide hormone alpha-melanocyte stimulating hormone (-MSH) that in usage has been shown to have melanogenesis (tanning) and aphrodisiac effects in preliminary studies and clinical trials. It is a cyclic lactam analog of -MSH with the amino acid sequence Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-NH2.
Storage Information: Lyophilized Peptides need to be stored in refrigerator or freezer to preserve shelf life.
Lyophilized peptides should be refrigerated and stored away from bright light. For short-term storage ranging from one week to two months, lyophilized peptides may be stored at 4 degrees Celsius. For long-term storage, lyophilized peptide should be stored at -20 degrees Celsius in deep freezer. Even though this condition keeps most peptides stable for several years, peptides' long term stability is at risk when peptides expose to moisture, therefore, the vial should be tightly capped at all times. This also requires careful experiment planning to minimize vial openings.
Repeated freeze-thaw cycles should be avoided for both lyophilized peptides and peptide solutions. If peptide samples need to be frequently or periodically taken from the stock, it is recommended to make a series of aliquots from the stock.
Peptide sequences containing C, M, or W are prone to air oxidation. It is recommended to purge the air out of the vial and replace it with a blanket of nitrogen or argon.
In general, peptide solutions are stable for up to a week at 4C. However, if the peptide sequence has inherent instability (Peptide Stability), it might be better to freeze the solution when not in use. Peptide solutions at pH>8 should also be frozen when not in use.
Melanotan II is a lyophilized peptide for research use only. This product is NOT for human use and can be harmful if ingested. This product is for research/laboratory use only. This product is NOT in a sterile solution and is NOT to be injected. This product should only be handled by licensed, qualified professionals. This product is not a drug, food, or cosmetic and should not be misbranded, misused or mislabeled as a drug, food or cosmetic.