melanotan ii molecule, molecular structures, c50h69n15o9, 3d model, structural chemical formula and atoms with color coding

melanotan molecule molecular structure chemical formula model c50h69n15o9 atom carbon hydrogen oxygen nitrogen tan render chemistry science composition atomic hormone skeletal tanning drawing alpha illustration compound erection aphrodisiac alphamelanocyte bremelanotide dysfunction erectile lactam melanin melanocortin melanocyte melanogenesis melanoma melanotane msh mt2 peptide stimulating sunless structures structural atoms color coding coding