PT-141 is a research-grade bremelanotide research peptide available at For Peptides with ~99% HPLC purity, independent 3rd-party lab testing, and >90% fill volume. Every vial ships from our USA facility and is intended strictly for in vitro laboratory research — not for human or veterinary use. Explore other hormonal research peptides in our hormonal research collection.
PT-141 (Bremelanotide) is a synthetic cyclic heptapeptide analogue of α-melanocyte stimulating hormone. It acts as a non-selective agonist at melanocortin receptors with highest affinity for MC3R and MC4R. Research has focused on its effects on central-nervous-system signaling pathways associated with sexual-arousal behavior in preclinical models.
PT-141 is studied in melanocortin-receptor pharmacology, CNS signaling research, and as a research tool for investigating MC3R/MC4R-mediated pathways.
Technical Specifications
- Molecular Formula: C50H68N14O10
- Molecular Weight: 1025.18 g/mol
- CAS Number: 189691-06-3
- Receptor Targets: MC1R, MC3R, MC4R
- Appearance: White lyophilized powder
- Amount per Vial: 10 mg
Handling & Storage
- Lyophilized powder: Store at -20°C for long-term stability.
- After reconstitution: Store at 2-8°C and use within 30 days.
- Reconstitution: Use bacteriostatic water or sterile water for injection.
- Avoid: Repeated freeze-thaw cycles and direct light exposure.
Quality & Testing
- Purity: ~99% by HPLC
- Testing: Third-party independent laboratory analysis
- Fill Volume: >90% guaranteed
- Shipping: Cold-chain compatible, ships from USA
Frequently Asked Questions
What does PT-141 target?
Melanocortin receptors, with highest research activity at MC3R and MC4R.
Purity?
~99% HPLC with third-party COA.
Storage?
Lyophilized: -20°C.
Why Researchers Choose For Peptides PT-141
- ~99% HPLC purity verified via high-performance liquid chromatography on every batch
- Independent 3rd-party lab testing with Certificate of Analysis (COA) available on request
- >90% fill volume guarantee — you get the peptide mass you paid for
- Ships from USA — fast domestic fulfillment, no international customs delays
- Real scientific support — questions answered by researchers, not a call center
Browse related research peptides in our hormonal research collection, or view all our best-selling research peptides. For questions about PT-141 purity, COAs, or bulk research orders, call 1-877-336-7737 or start a live chat.
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