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For laboratory research use only. Not for human or animal use. Not for diagnostic, therapeutic, or cosmetic purposes. Supplied with a lot-specific certificate of analysis.

Additional information

CAS Number

189691-06-3

Molecular Formula

C50H68N14O10

Molecular Weight

1025.2 g/mol

Sequence

Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-OH

Form

Lyophilized powder

Quantity

10 mg

PT-141 (bremelanotide) is the cyclic heptapeptide Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-OH, the C-terminal carboxylic-acid analog of Melanotan II. It is a non-selective agonist at the melanocortin receptors MC1R, MC3R, MC4R and MC5R.

The receptor pharmacology of this cyclic-lactam α-MSH(4-10) scaffold was mapped by Hruby and colleagues at cloned human and mouse melanocortin receptors, in a 1995 Journal of Medicinal Chemistry paper on cyclic lactam α-melanotropin analogs. PT-141 is used in melanocortin-receptor binding, cAMP, and receptor-selectivity assays.

Supplied as lyophilized powder, 10 mg per vial. Store sealed vials at 2–8 °C for short-term holding and at −20 °C for long-term storage, protected from light and moisture.

Current certificate of analysis (PDF): 10 mg, lot 20250201.

For laboratory research use only. Not for human or animal use. Not for diagnostic, therapeutic, or cosmetic purposes. Each lot ships with a certificate of analysis; match the lot number on the vial to the certificate before the material enters an assay.

Certificate of Analysis

Every lot Liv Pure ships is tested by an independent laboratory before release. The certificate of analysis reports chromatographic purity (HPLC) for that specific lot, and the current certificates for this compound are linked at the end of the description above, and every lot Liv Pure ships is listed on the Certificates of Analysis page. Match the lot number printed on the vial to the certificate before the material enters an assay. If a lot you hold is not listed, request its certificate from support@livpurewellness.com.

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Liv Pure

Liv Pure supplies research-grade synthetic peptides and laboratory reagents to qualified researchers and institutions. Every lot ships with a lot-specific certificate of analysis.

Research Use Only • Lot-Specific COAs • Ships From the USA

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All products provided by Liv Pure are intended solely for in-vitro laboratory research purposes. These materials are expressly forbidden for any form of human or animal use, ingestion, or administration, and all products are sold strictly for research, laboratory, or analytical purposes, not for human consumption. The products offered on this site are not formulated, designed, or intended to diagnose, cure, mitigate, treat, or prevent any disease or medical condition, and these statements have not been evaluated by the Food and Drug Administration. Liv Pure is a chemical supplier; it is not a compounding pharmacy or chemical compounding facility as defined under Section 503A of the Federal Food, Drug, and Cosmetic Act, nor an outsourcing facility as defined under Section 503B of the Act.