Formulation: A solid
Formal Name: 4-L-norleucine-7-D-phenylalanine-α-melanotropin (swine), acetate
Purity: ≥98%
Formula Markup: C78H111N21O19 • XC2H4O2
Formula Weight: 1646,9
Shelf life (days): 1460
CAS Number: 1566590-77-9
Notes: [Nle4,D-Phe7]-α-Melanocyte-stimulating hormone ([Nle4,D-Phe7]-α-MSH) is a peptide agonist of melanocortin receptor 1 (MC1R).{68917} It induces cAMP accumulation in mouse L-cells expressing human MC1R (EC50 = 0.5 nM). It also induces tyrosinase activity in mouse melanoma cells.{40733} In vivo, [Nle4,D-Phe7]-α-MSH (1.8 mg/kg) induces long-term skin darkening in frogs (R. pipiens).{40734} Formulations containing [Nle4,D-Phe7]-α-MSH have been used in the treatment of erythropoietic protoporphyria and as tanning agents.