PT-141 10 mg vial
Other

PT-141

PT-141 is supplied as 10 mg of lyophilized powder in a sealed vial, for laboratory research use only, shipped from Canada.

10 mgLyophilizedResearch use only
$69CAD · per vial
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Shipping is $15 flat per order, and free on orders over $200. Shipping and returns

About

Bremelanotide, a synthetic cyclic heptapeptide derived from the alpha-MSH sequence: N-acetyl-norleucine, Asp, His, D-Phe, Arg, Trp and Lys, with a lactam bridge from the aspartate side chain to the lysine side chain. Unlike Melanotan II it ends in a free carboxylic acid.

In the literature

Cited in cyclic-peptide structure studies and in receptor-binding work on the melanocortin family, including neuroendocrine signalling.

Storage

Store the sealed vial at −20 °C, protected from light and moisture. Let it reach room temperature before opening.

Supplied as

Lyophilized powder, 10 mg per vial, labelled for research use only.

Reference data

FormulaC50H68N14O10
Average molecular weight1025.2 g/mol
Monoisotopic mass1024.5243 Da
CAS number189691-06-3
Also known asbremelanotide
PubChemCID 9941379

Reference values from PubChem's record for the compound, not measurements of any Solara lot.

Laboratory analysis

LaboratoryVanguard Laboratory (A2LA Certificate 6377.01.01)
ReportV260916-28 006
Report date29 September 2026
Manufacturer's lotPT14109
Sample testedPT-141 10 mg
IdentityPass, matches reference standard
Purity99.27% (HPLC-UV/VIS)
Measured quantity10.28 (unit not stated on report)

Analysis of the manufacturer's lot, not of a Solara-labelled vial; Solara labels carry no lot number. Technical data sheet (PDF)

Further reading

Questions

What is PT-141?
Bremelanotide, a synthetic cyclic heptapeptide derived from the alpha-MSH sequence: N-acetyl-norleucine, Asp, His, D-Phe, Arg, Trp and Lys, with a lactam bridge from the aspartate side chain to the lysine side chain. Unlike Melanotan II it ends in a free carboxylic acid.
What does 10 mg on the PT-141 vial mean?
The label states the total quantity in the vial: 10 mg of lyophilized powder. Solara does not publish whether that figure is the gross powder weight or the net peptide content.
What is the molecular weight of PT-141?
PubChem lists an average molecular weight of 1025.2 g/mol and the formula C50H68N14O10 (PubChem CID 9941379). This is a computed reference value for the compound, not a measurement of a Solara lot. The label does not state the salt form; a salt has a higher formula weight than this value.
What is the CAS number of PT-141?
The CAS Registry Number given for PT-141 in its PubChem record is 189691-06-3; other salt forms carry other numbers.
How should PT-141 be stored?
Store the sealed vial at −20 °C, protected from light and moisture. Let it reach room temperature before opening.
Where does Solara ship PT-141 from?
Solara ships from Canada. Orders are dispatched within one to two business days of payment, sealed and packed to keep the powder dry and out of light. Prices are in Canadian dollars. Shipping is $15 flat per order, and free on orders over $200.
Is Solara's PT-141 for human use?
No. The PT-141 Solara supplies is a lyophilized powder for laboratory research use only, not for human or veterinary use. This product is not an authorized drug, carries no Drug Identification Number and is not GMP material. The Research use policy states the full condition of supply.
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