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Research Peptides

PT-141 Research Peptide

A high-purity research peptide studied in libido research. Available in 10mg, with every batch independently tested and dispatched from the UK.

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Product Overview

A high-purity research peptide studied in libido research. Available in 10mg, with every batch independently tested and dispatched from the UK.

Full Product Specification
Overview

Product Overview

PT-141 peptide UK is Crown Peptides' synthetic cyclic melanocortin peptide (bremelanotide), supplied in 10mg vials for laboratory research into melanocortin receptor pharmacology and central nervous system signalling.

10mgAvailable strengthHPLC testedChromatographic purityMS verifiedIdentity confirmedBatch CoADocumentation supplied

Supplied for laboratory research purposes only — not for human consumption or for medical, veterinary or diagnostic use.

Key features

Key Features

  • Studied in research involving melanocortin receptor pharmacology
  • Studied in research involving MC3R/MC4R-related signalling
  • Studied in research involving central nervous system research
  • Studied in research involving behavioural neurobiology models
  • Batch-specific quality documentation available
Background

About PT-141 Peptide UK

PT-141, also known as bremelanotide, is a synthetic cyclic melanocortin peptide derived from melanocortin research. Unlike pigmentation-focused analogues, much of its mechanistic research centres on central melanocortin receptor pathways.

Research

PT-141 Research

PT-141 is studied in melanocortin receptor pharmacology, particularly pathways involving MC3R and MC4R in the central nervous system (Learn more). Experimental models examine neural signalling, autonomic responses and behavioural neurobiology associated with melanocortin-system activation, alongside related melanocortin-research peptides such as [Melanotan-1] and [Melanotan-2]. Its research profile demonstrates how related melanocortin peptides can produce different biological responses depending on receptor preference and tissue context.

  • Melanocortin receptor pharmacology
  • MC3R/MC4R-related signalling
  • Central nervous system research
  • Behavioural neurobiology models
Specifications

Specifications

Product
PT-141
Classification
Synthetic cyclic melanocortin peptide also known as bremelanotide
Available strength
10mg
CAS number
189691-06-3
Molecular weight
1025.2 Da
Molecular formula
C50H68N14O10
Sequence
Ac-Nle-Asp-His-D-Phe-Arg-Trp-Lys-OH (cyclic, Asp2-Lys7 bridge)
Purity and assay
99% (HPLC), batch-specific — refer to Certificate of Analysis
Verification
HPLC and Mass Spectrometry where analytically appropriate

Compound-level reference data. Batch-specific results appear on the Certificate of Analysis.

Work out concentration with the peptide calculator
Testing

Purity and Testing

Crown Peptides PT-141 is supplied for controlled laboratory research with batch-specific analytical documentation. High-Performance Liquid Chromatography (HPLC) can assess chromatographic purity, while Mass Spectrometry provides molecular information used to support identity verification. The batch-specific Certificate of Analysis is the definitive source for the exact purity result, identity data and analytical specification of the material supplied.

Storage

Storage Conditions

  • Store unreconstituted material at -20°C ± 5°C in a cool, dry environment
  • Prepared research solutions should use validated storage conditions appropriate to the compound and study design
  • Protect from unnecessary heat, direct light and repeated temperature fluctuations
Full storage guide
Related

Related Compounds

Researchers working with PT-141 may also be interested in [Melanotan-1], [Melanotan-2], [Kisspeptin-10], [GHK-Cu] and [KPV] — other melanocortin and receptor-signalling peptides studied in related research areas.

Compliance

Research Use Only

  • Laboratory research only
  • Not for human or clinical use
  • Not for human or veterinary consumption
  • Qualified personnel only
Questions

PT-141 Frequently Asked Questions

What is PT-141?

PT-141 is a synthetic cyclic melanocortin peptide also known as bremelanotide, supplied by Crown Peptides in 10mg vials.

What receptors are associated with PT-141 research?

Research focuses strongly on central melanocortin receptors, including MC3R and MC4R-related signalling.

How is PT-141 different from melanocortin peptides studied mainly for pigmentation?

Its research profile centres more heavily on central melanocortin signalling rather than primarily on MC1R-driven melanogenesis.

What is PT-141 researched for?

Experimental studies include melanocortin receptor pharmacology, central nervous system signalling and behavioural neurobiology.

How is PT-141 tested?

Peptide purity and molecular identity can be assessed using HPLC and Mass Spectrometry, with batch-specific results documented on the CoA.

Read the batch certificate before you order

Every batch is published openly — identity, purity and batch number, with no account needed.

View lab reports

Supplied for laboratory research purposes only — not for human consumption or for medical, veterinary or diagnostic use.

All Batches Purity Tested

Each batch undergoes internal analytical verification using chromatographic and spectrometric methods prior to lyophilisation.

• HPLC Analysis
• Mass Spectrometry Confirmation
• Batch Traceability

For Research Use Only

By purchasing this product you confirm that you are a qualified researcher and that this compound will be used exclusively for laboratory research purposes.

Not for Human Consumption

This product is not intended for diagnostic or therapeutic use.

Any human or medical use is strictly prohibited.

Store Safely at All Times

Store in a cool, dry, secure and sterile environment away from any unauthorised persons or children.

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Further reading

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Disclaimer: All products are sold strictly for laboratory research purposes only. Not for human or veterinary use, consumption, therapeutic, or diagnostic application. By purchasing, you confirm you are a qualified professional and legally permitted to handle these materials in compliance with all applicable laws and regulations. Misuse, resale for unauthorised purposes, or unlawful application is strictly prohibited. Crown Peptides UK disclaims all liability for improper use, handling, or regulatory non-compliance.

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