# PT 141

- Link: https://zenergypeps.com/products/pt-141/
- Published: 2026-10-08T01:41:49-04:00
- Author: claude-agent

[View our 3rd-party testing data (COAs).](https://zenergypeps.com/test-results/)

PT-141 is a synthetic peptide supplied as a lyophilized powder for laboratory research.

**Chemical identity**

**PT-141 (bremelanotide)**

 * CAS No.: 189691-06-3
 * Molecular Formula: C50H68N14O10
 * Molecular Weight: 1025.2 g/mol
 * Sequence: Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-OH

**Specifications**

 * Amount per vial: 10 mg | Purity: 99.956% (HPLC; most recent COA, 7X panel)
 * Storage: Store in a cool, dry environment. Reconstituted should be refrigerated(
   2°C–8°C).

For laboratory research use only. Not for human or animal consumption.