Catalog · Wellness

PT-141

Name: PT-141 Research Peptide
Brand: Ethos Bio
Price: 44.99 USD
Availability: InStock

CAS 189691-06-3MW 1,025.2 g/mol≥99.0% Purity

A melanocortin receptor agonist studied for MC3R/MC4R signaling in research models.

Quantity per vial

Vials

$44.99

Free cold-chain shipping over $200
Signed COA included with every vial
Batch-pinned ordering for protocol continuity

Research Use Only. Sold for research and identification purposes only. Not intended for human dosing, injection, or ingestion.

Mass-Spec Verified

HPLC + LC-MS per batch at Janoshik.

99% Purity Threshold

Below-spec lots are destroyed, not sold.

Cold-Chain 2–8°C

Continuous transit temperature logging.

U.S. cGMP Compounded

Domestic manufacturing, lot traceability.

Mechanism of action

PT-141 (bremelanotide) is a cyclic heptapeptide analog of α-MSH that acts as an agonist at the melanocortin receptors, principally MC3R and MC4R. Research models study its central-nervous-system melanocortin-pathway signaling.

Unlike peripheral vasoactive compounds, it is investigated for receptor-mediated central signaling, which is the focus of its research literature.

Full research overview, applications & FAQ →

Specifications

Compound name	PT-141 (Bremelanotide)
CAS number	189691-06-3
Sequence / Form	Ac-Nle-cyclo(-Asp-His-D-Phe-Arg-Trp-Lys)-OH
Molecular weight	1,025.2 g/mol
Classification	Wellness research compound
Purity (HPLC)	≥ 99.0%
Identity verification	LC-MS (Janoshik Analytical)
Appearance	White lyophilized powder
Storage	Lyophilized: 2–8°C, sealed. Long-term: −20°C.
Vial sizes	10 mg
Synthesis method	Solid-phase peptide synthesis (SPPS)

Per-lot certificate of analysis

Every shipment of PT-141 includes a signed Certificate of Analysis specific to the lot you receive, documenting HPLC purity, LC-MS identity confirmation, water content, and the cold-chain temperature log. Testing is performed by our independent partner, Janoshik Analytical.

View Certificate of Analysis →

Research Use Only — required disclosure

PT-141, like all Ethos Bio products, is sold strictly for in-vitro and laboratory research use only. It is not a drug, food, cosmetic, or supplement; not intended for human or veterinary consumption; and not intended for the diagnosis, treatment, cure, mitigation, or prevention of any disease.

Sale is restricted to qualified researchers and institutions, aged 21+. By placing an order you certify the compound will be used solely for laboratory research consistent with 21 CFR § 201.128.