Melanotan-1 (MT-1) is a synthetic analog of alpha-MSH and full-length 13-amino acid linear peptide. With the molecular formula C₇₈H₁₁₁N₂₁O₁₉ and a molecular weight of 1646.8 g/mol (CAS: 75921-69-6), it structurally mimics endogenous peptides while extending its sequence.
Ac-Ser-Tyr-Ser-Nle-Glu-His-D-Phe-Arg-Trp-Gly-Lys-Pro-Val-NH2


