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FOR RESEARCH USE ONLY. This compound is not FDA approved. All data presented is from clinical trials for educational reference.

PT-141
8x tested · ISO 1702599%+ purity

Cellular Peptide

PT-141

A 7-amino acid cyclic peptide analog of alpha-MSH that activates melanocortin receptors MC3R and MC4R, FDA-approved for hypoactive sexual desire disorder and studied for sexual function in clinical research. Premium Research Peptide.

$29.99$19.49
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40% off from 10 units per product, 50% off from 50 + free 2-day signed delivery.

Verified Test Results

Every batch, independently verified.

Each batch is analyzed by an ISO/IEC 17025 accredited third-party laboratory before it ships. This is the released report for the current batch, exactly as the lab signed it.

ILSILS LaboratoriesIndependent, ISO/IEC 17025 accredited

Certificate of Analysis

99.91%

Purity by HPLC

Lot
PT0002
Tested
Jul 30, 2026
Labeled
10mg
Measured
10.61mg
ISO 17025 Accredited8× Tested
View signed certificate (PDF)

Full QC panel

6 passed · 2 reported

Appearance

Visual

GoodPass

Purity

HPLC · spec ≥ 95%

99.91%Pass

Net Peptide Content

HPLC

10.61mgReported

Identity

HPLC

ConfirmedPass

Fentanyl Screen

Immunoassay

Not DetectedPass

Heavy Metals

ICP-MS

Not DetectedPass

Sterility

PCR

No GrowthPass

Endotoxin

USP <85>

< 0.05 EU/mLReported

Every batch on record

Open any lot's signed certificate. Your order ships with its own lot-specific report.

PT-141 10mg

Latest

LOT PT0002

99.91%

HPLC purity · meets spec

Labeled
10mg
Measured
10.61mg
Identity
Confirmed
Heavy metals
Not Detected
Sterility
No Growth
Endotoxin
< 0.05 EU/mL
Tested
Jul 30, 2026

8 assays passed · ILS Laboratories, ISO/IEC 17025 accredited

View certificate

PT-141 10mg

LOT PT0001

99.62%

HPLC purity · meets spec

Labeled
10mg
Measured
10.61mg
Identity
PT-141
Heavy metals
Not Detected
Sterility
No Growth
Endotoxin
< 0.05 EU/mL
Tested
May 29, 2026

7 assays passed · ILS Laboratories, ISO/IEC 17025 accredited

View certificate

Technical specifications

Compound Information

Molecular Profile

What Is PT-141?

Cyclic heptapeptide analog of alpha-MSH, active metabolite of Melanotan II

Cyclic PeptideFDA Approved
Type
Cyclic heptapeptide
CAS Number
189691-06-3
Molecular Formula
C50H68N14O10
Molecular Weight
1025.2 g/mol
Amino Acids
7 residues
Sequence
Ac-Nle-c[Asp-His-D-Phe-Arg-Trp-Lys]-OH
PubChem Database
Storage Requirements

Stability Information

Handle with care to maintain potency

Light sensitiveRefrigerate
Lyophilized (powder)
protect from light
Reconstituted
Recommended condition
Auto-injector (Vyleesi)
Room temperature

Sealed lyophilized vials are heat-stable; refrigerating or freezing sealed vials is optional. 2-8°C applies to reconstituted solutions.

Development Status

Regulatory Information

Developed by Palatin Technologies, approved by FDA

Developer
Palatin Technologies
Marketing
AMAG Pharmaceuticals
FDA Approval
June 21, 2019
Trade Name
Vyleesi
Indication
HSDD in premenopausal women
Male Use
Not approved (research only)
FDA Approval Letter

Peer-reviewed literature

The research behind this compound, cited in full.

Every research claim on this page traces back to one of the 7 publications below.

  1. 01Obstetrics & Gynecology · 2019Bremelanotide for the Treatment of Hypoactive Sexual Desire Disorder: Two Randomized Phase 3 Trials
  2. 02International Journal of Impotence Research · 2004PT-141: a melanocortin agonist for the treatment of sexual dysfunction
  3. 03Journal of Sexual Medicine · 2006An effect on the subjective sexual response in premenopausal women with sexual arousal disorder by bremelanotide (PT-141), a melanocortin receptor agonist
  4. 04Journal of Women's Health · 2022Reported Event Profile of Bremelanotide Across the Clinical Development Program
  5. 05FDA · 2019Vyleesi (bremelanotide) Prescribing Information
  6. 06Medicina (Kaunas) · 2022Bremelanotide for Treatment of Female Hypoactive Sexual Desire Disorder
  7. Show all 7 references
    1. 07PubChem DatabaseBremelanotide - Compound Summary (CID 9941379)

Important research notice

Not for human, veterinary, or food use. This product is sold exclusively for research and educational purposes. It is not intended to diagnose, treat, cure, or prevent any disease.

All clinical trial data and research findings presented on this page are sourced from peer-reviewed journals and official publications. They are provided for educational reference only and should not be interpreted as medical advice or product claims.

By purchasing this product, you confirm that you are a qualified researcher and will use it in accordance with all applicable laws and regulations.

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PT-141 | 99%+ Pure Peptide | Amino Club | Amino Club