PT-141 10mg

PT-141 (Bremelanotide) at a glance

Bremelanotide, widely known by its development code PT-141, is a cyclic heptapeptide with the formula C50H68N14O10 and a molecular weight of 1025.2 g/mol. It is a close relative of Melanotan II: the two share a lactam-bridged ring, but bremelanotide ends in a free carboxylic acid where Melanotan II carries an amide. Palatin Technologies developed it after observations made during Melanotan II research pointed toward effects on sexual function.

Price and availability

This is Peptide Express‘s single 10mg vial, dispatched from the United States. The price is $41.00, or $4.10 per milligram of peptide. Across 13 brands listing PT-141 (Bremelanotide) here, the middle half of prices falls between $0.57 and $2.80 per mg; this kit is above the typical range. Funds stay in escrow and are released to Peptide Express only when you mark the order as received.

What it is studied for

PT-141 is described as an agonist at several melanocortin receptors, with interest centered on MC4R and, to a lesser degree, MC3R in the brain. MC4R neurons in the hypothalamus and connected circuits are thought to influence motivation and sexual responses, and bremelanotide's effects are generally attributed to that central route rather than to direct action on blood vessels. It retains some MC1R activity, which has been linked to localized skin darkening reported in clinical studies, where nausea and transient blood-pressure rises were also documented.

Research and regulatory status

Bremelanotide is approved by the US FDA as a prescription medicine for acquired, generalized hypoactive sexual desire disorder in premenopausal women, on the basis of late-stage clinical trials. An earlier intranasal version was halted over blood-pressure findings. Outside that approved use, researchers employ the peptide to probe melanocortin pathways in appetite and behavior. Material sold for research is a separate preparation and has no connection to the approved product's regulatory status.

Checking the lab data

Mass spectrometry should show a mass consistent with 1025.2 g/mol. Because PT-141 and Melanotan II differ only at the C-terminus, about one mass unit apart, a high-resolution measurement or a reference retention time helps rule out mislabeled material. HPLC purity should be reported from a lot-specific trace. The lyophilized cake is typically white and compact. Look for an independent lab, a test date and a batch number on the report.

No independent report is attached to this listing yet. You can compare brands that publish one on the PT-141 (Bremelanotide) page or browse the lab reports directory.

Listing details

Compound

PT-141 (Bremelanotide)

Synonyms

Bremelanotide

Class

Melanocortin receptor agonist

Format

Lyophilized (freeze-dried) powder

Molecular formula

C50H68N14O10

Molecular weight

1025.2 g/mol

Vial strength

10mg

Total content

10 mg

Price per mg

$4.10

Sold by

Peptide Express

Ships from

United States

Lab report

Not yet published

Storage and preparation

Freeze-dried peptide keeps best sealed, cold and dark. Once it has been dissolved, refrigerate it, avoid repeated warming and follow the stability limits in your study protocol.

Concentration arithmetic: one 10 mg vial dissolved in 2 mL gives 5 mg/mL, or 10 mg/mL in 1 mL. The Research Lab calculator in your dashboard handles any other volume.

Buyer questions

Supplied for laboratory research only. Not for human or veterinary use, and not a substitute for any prescription medicine. Nothing on this page is medical advice.