Lyophilized Peptide PT - 141 CAS 32780-32-8 Bremelanotide as Growth Hormone Peptide

• Description
  
  PT-141 (Bremelanotide) is a highly potent synthetic peptide analogue of α-MSH that may elicit aphrodisiac effects through stimulation of melanocortin receptors. PT-141 (Bremelanotide) consists of seven amino acids and is a cyclic, shortened lactam variant of alpha-Melanocyte-stimulating hormone (α-MSH), a multifunctional peptide that regulates a broad array of physiological functions. In studies, bremelanotide was shown to induce lordosis in an animal model and was also effective in treating sexual dysfunction in both men (erectile dysfunction or impotence) and women (sexual arousal disorder).
   
• Specification
  
  Name: PT-141
  Synonyms: Bremelanotide, PT-141 Acetate
  CAS #: 189691-06-3
  Molecular Formula: C50H68N14O10
  Molecular Mass: 1025.2 Da (g/mol)
  Amino Acid Sequence: Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-OH
  Structure:
  
  
   
• Purity
  
  PT-141 has a peptide purity level that exceeds 99.0% as determined by HPLC and MS. This peptide was synthesized with no additives and is supplied as a white lyophilized (freeze-dried) powder.
  
  
   
• Application Information
  
  Bremelanotide, similarly to its analogues α-MSH and melanotan II, acts as a non-selective agonist of all of the melanocortin receptors except MC2, where it lacks significant affinity. Reported activity of the drug is as follows:
  MC1 (Ki = 0.68 nM)
  MC2 (Ki > 1000 nM)
  MC3 (Ki = 72.07 nM)
  MC4 (Ki = 19.25 nM)
  MC5 (Ki = 166.8 nM)
  
  Bremelanotide appears to stimulate sexual desire and arousal completely or mostly via activation of the MC4 receptor (the MC3 receptor may also be involved). It modulates inflammation and limits ischemia via activation of the MC1 and MC4 receptors.
  
  According to Palatin Technologies' original 2003 patent for bremelanotide, it possesses approximately 50 times the potency of melanotan II as an inducer of erection in male rats. In addition, it was stated in the patent that the therapeutic window of bremelanotide in animals (specifically, the range of induction of the desired sexual arousal relative to the induction of side effects including nausea, yawning, stretching, and decreased appetite) was >1,000-fold, whereas that of melanotan II was only 3- to 4-fold. They concluded that bremelanotide would be more tolerable than melanotan II.
   
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• Reference List of Available Peptides
   

  Peptide	Specification		Peptide	Specification
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  BPC-157	5 mg		Tesamorelin	10 mg
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