Illustrative
PT-141
10mg (10-vial pack) lyophilized · Batch PT-2606 · Released 2026-06
$120.92
Need just one vial instead of the 10-vial kit? Email us to arrange — same per-vial price.
Specifications
- Purity
- 99.0% (HPLC, in-house QC)
- CAS
- 32780-32-8
- Molecular mass
- 1025.2 g/mol
- Plasma half-life
- ~2 hr
- Form
- Lyophilized white powder
- Storage
- −20°C long-term, or 2–8°C refrigerated for near-term use
- Shipping
- Insulated, from China, 10–15 days (58 countries)
In-house QC results
QSC Peptidology
In-house analytical QC · China
- Purity (HPLC)
- 99.0%
- Method
- RP-HPLC at 220 nm
- Identity
- LC-MS mass confirmation
Independent third-party re-verification available for this batch on request — not run by default.
About this peptide
Research articles about PT-141
- Melanotan II and the Melanocortin Receptor FamilyThe non-selective cyclic agonist that became the structural template for more targeted melanocortin research tools.
- PT-141 (Bremelanotide) in Melanocortin Receptor ResearchHow PT-141 was derived from melanotan II, what receptors it targets, and what researchers should know about handling.
Questions about PT-141 10mg — 10-Vial Pack
How is PT-141 10mg — 10-Vial Pack reconstituted?
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PT-141 10mg — 10-Vial Pack is supplied as lyophilized powder under nitrogen. Typical reconstitution is in sterile or bacteriostatic water; the exact concentration depends on your protocol. Our free reconstitution calculator computes mL per dose and insulin-syringe units from any combination of vial size, water volume, and target dose.
What is the HPLC purity of this batch?
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Batch PT-2606 of PT-141 10mg — 10-Vial Pack is verified in-house at 99.0% HPLC main-peak purity, with molecular weight confirmed by LC-MS and endotoxin screened by LAL assay. That in-house COA — chromatogram, mass spec trace, and purity call — is bundled with your order as a downloadable PDF. Independent third-party re-verification can be arranged for a specific batch on request; it isn't run by default.
How does QSC ship internationally?
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All orders ship via DHL, UPS, or FedEx from our China facility, insulated for transit, to 58 countries. Customs duties are prepaid by us (DDP) — no surprise charges on delivery. Estimated transit time is about 10–15 days door to door. Tracking number is emailed when the shipment is scanned by the courier.
What payment methods are accepted?
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One fully automated, self-serve method, 10% off: "Pay with crypto or card" at checkout takes a direct crypto payment from your own wallet (Bitcoin, Ethereum, USDT, USDC and more) or a normal card payment via our card-to-crypto processing partner — no crypto wallet needed for cards. Wire transfer, PayPal, and Revolut can be arranged by email before you order, at the regular price without the 10% discount. ACH is temporarily paused. Full payment-method details are on the shipping & payment page.
What is the plasma half-life of PT-141?
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PT-141 has a plasma half-life of ~2 hr in published pharmacokinetic studies. Most published research designs use single-dose or short-course protocols rather than chronic administration, partly because of the receptor desensitization patterns observed with prolonged melanocortin signaling.
How selective is PT-141 across melanocortin receptors?
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PT-141 has substantially reduced MC1R affinity compared to melanotan II. It retains agonism primarily at MC3R and MC4R, which gives it a cleaner profile for studying central arousal pathways without confounding peripheral pigmentation effects.
Insulated shipping
Sealed under nitrogen, insulated for transit.
Ships to 58 countries
DHL, UPS, or FedEx — customs prepaid by us (DDP).
Batch results published
In-house HPLC/LC-MS data for this batch, shown above.
