How to Reconstitute PT-141 (Bremelanotide): A Step-by-Step Guide
Reconstituting PT-141 (Bremelanotide) is not identical to reconstituting any other compound in this library. Water-soluble and straightforward to reconstitute.
In plain English
Straightforward — it dissolves readily in bacteriostatic water. Its ring structure is rigid, so unlike long floppy molecules it is not especially sensitive to agitation. A 10 mg vial in 2 mL gives 5 mg/mL.
What PT-141 (Bremelanotide) actually is
PT-141 has an unusual history. It is a breakdown product of a compound originally developed for research into skin pigmentation, and an unexpected observation during that work redirected attention to the breakdown product, which was then developed as its own line of research.
Supplied for laboratory research use only — not for human or animal use.
Third-party tested by HPLC and LC-MS, ≥99% purity, with a Certificate of Analysis on every order. Ships across Canada.
Technical detail below
Diluent selection for PT-141 (Bremelanotide)
Water-soluble and straightforward to reconstitute. The molecule is cyclic — closed through a lactam bridge rather than a disulfide — which makes it conformationally constrained and notably more rigid than a linear peptide of similar length.
Common reconstitution reference
A 10 mg vial in 2 mL gives 5 mg/mL. Keep reconstituted material protected from light.
Open the PT-141 (Bremelanotide) calculatorMethod notes for this compound
- Protect from light at all stages.
- Standard gentle reconstitution; the constrained ring is not agitation-sensitive in the way flexible long chains are.
- Store refrigerated and aliquot rather than repeatedly sampling one vial.
What PT-141 (Bremelanotide) is studied for
Acts at melanocortin receptors, with MC3R and MC4R the subtypes of research interest.
Distinguished in the literature by acting centrally, unlike vascular-mechanism compounds in adjacent research areas.
Its origin as a metabolite of a pigmentation-research compound is central to understanding its development history.
The lactam bridge restricts conformational freedom, a common strategy for improving receptor selectivity.
Summarizes published preclinical literature. Provided for research reference only; not a claim of efficacy or a description of human use.
More PT-141 (Bremelanotide) reference
Lyophilized and reconstituted storage conditions, plus the practical working window.
Which solvents work, why, and what abnormal dissolution behaviour indicates.
The specific chemical routes by which this molecule breaks down, and how to limit each.
Which assays are informative for this molecule, and what to actually check on its COA.
Compound-specific bench practices, and the errors most often made with this molecule.
What to inspect on arrival, and which conditions actually warrant rejecting a vial.
Questions specific to this compound — structure, chemistry, and common misconceptions.
Reconstitution reference for other compounds
PT-141 (Bremelanotide) is supplied strictly as a research chemical for in-vitro laboratory and research use only. It is not intended for human or animal consumption, diagnostic, or therapeutic use. This page is educational laboratory-handling reference information — not medical advice, not usage guidance, and not a protocol.