Melanotan-II CAS NO 121062-08-6


CAS 121062-08-6
MF: C50H69N15O9
FW: 1024.18
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  • Additional information


CAS NO: 121062-08-6
Product Name: MT2/Melanotan-II
EINECS: 1308068-626-2
Synonyms: Acetyl-(Nle4,Asp5,D-Phe7,Lys10)-cyclo-α-MSH (4-10) aMide Melanotan II, MTII, BreMelanotide aMide;MelanotanII Acetate(MT-2);AC-NLE-CYCLO(-BETA-ASP-HIS-D-PHE-ARG-TRP-EPSILON-LYS-NH2);AC-NLE-CYCLO[(BETA-D)-HFRW-(EPSILON-K)]-NH2;AC-NLE-CYCLO(-ASP-HIS-D-PHE-ARG-TRP-LYS-NH2) ACETATE SALT;AC-NLE4-C[ASP5, D-PHE7, LYS10]ALPHA-MSH (4-10)-NH2;AC-[NLE4, ASP5, D-PHE7, LYS10]-ALPHA-MSH (4-10)-NH2;(AC-NLE4, ASP5, DPHE7, LYS10)-CYCLO-ALPHA-MSH (4-10) AMIDE
Molecular Formula: C50H69N15O9
Formula Weight: 1024.18
Density: 1.43
Appearance: white solid
Purity: >98%
Storage: Keep in dark place,Sealed in dry,Store in freezer, under -20°C
Solubility: H2O: 5 mg/mL, soluble
Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.



Melanotan II is a synthetic analogue of the melanocortin peptide hormone alpha-melanocyte stimulating hormone (α-MSH) that occurs naturally. In usage, Melanotan II has been revealed to have aphrodisiac and melanogenesis (tanning) effects that have been subjected to clinical trials and preliminary studies. The compound is a cyclic lactam analogue of α-MSH that has an amino sequence named MTII (Ac-Nle-c[Asp-His-D-Phe-Arg-Trp-Lys]-NH2). Notably, no government drug regulatory agency across the world had approved for the use of any compound incorporating the Melanotan II peptide by 2010


Malanotan II is used for tanning of the skin and producing of erections in men with erectile dysfunction when administered as a shot under the skin. Malanotan II is safe when used under strict medical supervision for treating erectile dysfunction. However, it may cause stomach cramps, tiredness, nausea, spontaneous erections of the penis, and darkened skin.

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Crystal powder


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