PT-141

CAS 189691-06-3
$84 to $320

PT-141

10mg per vial

CAS 189691-06-3

Available packs
2 vials
20mg
5 vials
50mg
10 vials
100mg
In stock
Choose pack
Pack price
Selected pack
20mg pack
2 vials x 10mg · 20mg total · $4.20/mg
Pack price
$84
Quantity
Free-shipping eligibility is calculated in your cart.
Current-lot certificate rows are available below.

Research Use Only. Not for use in diagnostic tests.

Before ordering
  • Independent certificate details, manufacturer IDs, and batch IDs should be reviewed before purchase when available.
  • Order cancellations for full refunds are available before shipment; shipped orders cannot be cancelled or refunded.
  • For damaged or incorrect goods, photograph the outer packaging, inner packaging, and agent labels, then email support within 48 hours of carrier delivery.

How to store PT-141 10mg vials

PT-141 is shipped as a freeze-dried powder in sealed 10mg vials. For long-term storage, place unopened vials in a freezer; for near-term use, keep them in a cool, dry place shielded from light, since moisture and light are the main threats to a lyophilized peptide. Limit how often sealed vials move between cold and room temperature.

After reconstitution, keep the bremelanotide solution refrigerated and handle it only with sterile equipment, wiping the stopper before every draw. For the reconstitution step, our BAC water for peptide reconstitution is available in 10mL vials and can be added to your PT-141 order.

  • Long-term: freezer, vial sealed
  • Short-term: cool, dry and dark
  • Reconstituted: refrigerator
  • Every draw: sterile technique

Each lot of third-party tested PT-141 comes with a certificate of analysis documenting its endotoxin, heavy-metal and purity screening. Browse our independent third-party certificates and search by the batch ID on your vial to find the report for your bremelanotide lot. The certificate shown below is for the lot currently on sale.

Current lot certificates

16 published certificate rows across 4 screening categories.

Search certificate ledger

Purity

AgentBatch IDManufacturerLaboratoryDouble validatedFile
PT-141PT202512WF03Kovera LabsYesView file
PT-141PT202605WF03Kovera LabsYesView file
PT-141PT202605WF03Kovera LabsYesView file
PT-141PT202512WF03Kovera LabsYesView file

Endotoxin

AgentBatch IDManufacturerLaboratoryDouble validatedFile
PT-14110MGWF03Kovera LabsYesView file
PT-141PT202605WF03Kovera LabsYesView file
PT-141PT202605WF03Kovera LabsYesView file
PT-14110MGWF03Kovera LabsYesView file
PT-14110MGWF03Kovera LabsYesView file

Sterility

AgentBatch IDManufacturerLaboratoryDouble validatedFile
PT-141PT202605WF03Kovera LabsYesView file
PT-141PT202605WF03Kovera LabsYesView file
PT-141PT202605WF03Kovera LabsYesView file
PT-141PT202605WF03Kovera LabsYesView file

Heavy metals

AgentBatch IDManufacturerLaboratoryDouble validatedFile
PT-141PT202605WF03Kovera LabsYesView file
PT-141PT202605WF03Kovera LabsYesView file
PT-141PT202605WF03Kovera LabsYesView file

PT-141 for sale in 10mg research vials

We list PT-141 for sale as lyophilized bremelanotide in 10mg vials with a 3 mL capacity. Packs contain 2, 5 or 10 vials, giving 20mg, 50mg or 100mg of peptide per order for laboratory research programmes of different lengths. Every vial in a pack comes from the same tested lot, so the certificate record you check before ordering applies to each one, and the 3 mL vial leaves working room for reconstitution.

What is bremelanotide (PT-141)?

PT-141, known by its non-proprietary name bremelanotide, is a synthetic cyclic heptapeptide. It is structurally derived from melanotan II, a related cyclic peptide, and is an analogue of alpha-melanocyte-stimulating hormone (α-MSH), the endogenous ligand of the melanocortin receptor family. Bremelanotide acts as a melanocortin receptor agonist, with its main activity reported at the MC3 and MC4 receptor subtypes. Because the MC4 receptor is expressed mostly in the central nervous system, PT-141 is used in research on central melanocortin signalling and on how cyclic peptide structure affects receptor selectivity. It also serves as a comparison compound in structure-activity studies of other α-MSH analogues, where its ring structure and receptor profile are set against linear peptides and against melanotan II itself. Each PT-141 10mg vial is supplied strictly for this kind of laboratory research.

PT-141 price and pack sizes

Three pack sizes are available, all filled with the same PT-141 10mg vial:
  • 2 vials × 10mg = 20mg pack
  • 5 vials × 10mg = 50mg pack
  • 10 vials × 10mg = 100mg pack
Choosing a larger pack lowers the price per mg, and the live price for each pack is shown above.

Buy PT-141 online with independent testing

Every lot of PT-141 for sale on this US storefront is independently tested by a third-party laboratory for endotoxin, heavy metals and purity, and the certificate records are published for each lot. The specification table and the Certificates tab on this page list the current results for the lot now shipping. Payment options are CashApp, Apple Pay, Chime and cryptocurrency, set out in full in our payment options guide, and free-shipping eligibility is calculated in the cart. Orders can be cancelled for a full refund until they ship, and damaged items are handled when reported with photos within 48 hours. You can also combine your order with other third-party tested research peptides and lab supplies so everything ships together.

PT-141 FAQ

What is PT-141?

PT-141 is the research code for bremelanotide, a synthetic cyclic heptapeptide derived from melanotan II. It acts as a melanocortin receptor agonist, mainly at the MC3 and MC4 receptors, and is used in research on melanocortin signalling. It is sold here in 10mg lyophilized vials for laboratory research use only.

Is PT-141 the same as bremelanotide?

Yes. PT-141 is the development code and bremelanotide is the non-proprietary name for the same molecule. You will also see it written as PT141 without the hyphen. The product on this page is that peptide, listed with CAS number 189691-06-3 and supplied as a lyophilized powder.

What pack sizes does PT-141 10mg come in?

PT-141 is supplied in 10mg vials sold in packs of 2, 5 or 10, for 20mg, 50mg or 100mg of peptide. The price per mg falls on the larger packs, and the current price of each pack is shown at the top of the product page.

How is each PT-141 lot tested?

Before release, every lot is screened by an independent third-party laboratory for endotoxin, heavy metals and purity. The current lot’s results are in the specification table and the Certificates tab, and all certificates can be searched by batch ID on the independent certifications page.

Can I cancel a PT-141 order?

Yes. Orders can be cancelled for a full refund at any time before they ship. After delivery, any damaged or incorrect item should be reported with photos within 48 hours. Payment is accepted through CashApp, Apple Pay, Chime or cryptocurrency, and free-shipping eligibility shows in the cart.

PT-141

PT-141, 10mg per vial, available in 20mg, 50mg and 100mg packs.

Pack pricing runs from $84 for the 20mg pack to $320 for the 100mg pack.

Research Use Only. Not for use in diagnostic tests.

Short name
PT-141 (10mg vials)
CAS
189691-06-3
Vial strength
10mg vials
Pack sizes
20mg pack, 50mg pack and 100mg pack
Pack count options
2, 5 and 10 vial packs
Compliance
Research Use Only. Not for use in diagnostic tests.

Also known as PT141 and bremelanotide, PT-141 is a synthetic cyclic heptapeptide and melanocortin receptor agonist (MC3R and MC4R), structurally derived from melanotan II. CAS number: 189691-06-3. It is supplied as a lyophilized powder in 10mg vials for laboratory research use. The thymus-derived peptide in the same research group is thymosin alpha-1 10mg vials.