Fast UK dispatch · Third-party tested · Lot-matched certificates

30MG≥99.0% HPLCLibido pathway research

Healing & Recovery

PT-141 30mg

Type:: Melanocortin receptor agonist studied for central nervous system signalling.
Form:: Ready-to-use liquid solution in a 30mg research cartridge.
Application:: Melanocortin receptor (MC3R/MC4R) pharmacology

PT-141

30mg · Ready to use

£3.30 per mg · 30mg total

£99.00

Choose your pack

Lot-matched 3rd party CoA with every batch

HPLC + Mass Spec

Lot-Matched CoA

UK Next-Day Dispatch

Temperature-Controlled

For laboratory research use only. Mercia Research supplies these compounds for in vitro research and analytical work by qualified personnel.

≥99.0%

HPLC purity, verified per lot

Mass-spec confirmed identity

Endotoxin tested to established limits

Synthesised and tested in Britain

What's in the cartridge

Supplied as a pre-mixed liquid peptide solution in a 3ml research cartridge. Contains PT-141 (30mg). A cyclic heptapeptide derived from Melanotan II, studied for its activity at melanocortin receptors (primarily MC3R and MC4R) in central nervous system signalling research.

Melanocortin receptor (MC3R/MC4R) pharmacology

Central nervous system signalling pathways

Receptor subtype selectivity studies

Structure-activity relationship studies relative to Melanotan II

Specifications

Format

Liquid peptide solution, 30mg

Molecular formula

Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-OH (C50H68N14O10)

Molecular weight

1025.18 g/mol

Purity

≥99.0%

Abbreviation

PT141

Vials vs Pens

11 Steps. Or one.

A vial arrives as powder: you mix it, measure it, and draw every dose by hand. The Mercia Pen arrives ready.

Traditional Vial

Mercia Pen

11 steps

mixing, measuring, drawing

1 click

dial the dose, press

~12 minutes

plus a 5 minute wait mid-way

12 seconds

ready when you are

Hand-measured

syringe markings, eyeballed

Mechanical click

the same dose, every time

Opened repeatedly

every needle re-entry is a risk

Factory-sealed

never opened, never mixed

Syringes + water

plus wipes and a sharps bin

Nothing else

everything is in the pen

Handling and storage

Store

Store immediately at 2–8°C upon delivery. Do not freeze.

Shipping

Shipped in validated temperature-controlled packaging to maintain product stability during transit.

Avoid Freezing

Do not freeze, as freezing may compromise product quality.

Temperature Tolerance

Stabilised below 25°C for delivery. Should not be exposed to higher temperatures.

3rd Party Tested

Independently tested for heavy metals, residual solvents and endotoxins to established limits.

Full Traceability

Batch-level traceability from production to delivery.

Certificate of Analysis

Lot-matched 3rd party CoA with every batch. Available on our website.

Shelf Life

12 months from manufacture when stored at 2–8°C.

What customers say

Really impressed with the service. Ordered in the afternoon and everything arrived the next day. The temperature controlled packaging was a nice touch and the CoA with matching batch number gave me confidence in the quality.

James Walker

Excellent experience from start to finish. Fast 24-hour delivery, securely packaged and everything arrived cold. Batch numbers matched the documentation and the certificate of analysis was included.

Sarah Mitchell

Very professional service. Communication was great, delivery was incredibly quick and the insulated packaging kept everything in perfect condition. Nice to see full CoA documentation included.

Daniel Harris

First order and definitely won't be my last. Arrived within 24 hours, well protected and temperature controlled.

Emily Carter

Couldn't fault the experience. Easy ordering process, next-day delivery and excellent packaging.

Michael Turner

Frequently asked questions

Is a Certificate of Analysis included?+

Yes. Every order ships with a third-party CoA matched to the lot number printed on your cartridge. A sample CoA is available on the site.

How is purity verified?+

Each batch is HPLC-tested for purity and mass-spec confirmed for identity, then tested for heavy metals, residual solvents and endotoxins.

Does the solution need reconstituting?+

No. The cartridge is supplied as a ready-to-use liquid solution in 3ml bacteriostatic water.

How is it shipped and stored?+

Validated temperature-controlled packaging, UK next-day dispatch. Store at 2–8°C on arrival, do not freeze, 12-month shelf life.

Who is this supplied to?+

Qualified personnel for in vitro laboratory research and analytical work only. Not for human or animal consumption.