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| CAS Number | 189691-06-3 (free base); 1607799-13-2 (acetate salt, common in formulations) |
| Molecular Formula | C50H68N14O10 (free base) |
| Molar Mass | 1025.2 g/mol (or approximately 1025.18–1025.2 g/mol; acetate salt ~1085 g/mol) |
| Sequence | Ac-Nle-cyclo(Asp-His-D-Phe-Arg-Trp-Lys)-OH
(Ac-Nle-Asp(1)-His-D-Phe-Arg-Trp-Lys(1)-OH; cyclic lactam bridge between Asp5 and Lys10; 7 amino acids with Nle substitution and D-Phe for enhanced stability/potency) |
| Synonyms | PT-141, Bremelanotide, Rekynda, Bremelanotide acetate, Vyleesi (brand name for approved formulation), cyclo-Ac-[Nle⁴,Asp⁵,D-Phe⁷,Lys¹⁰]α-MSH-(4-10) |
| Purity | ≥97–99% (HPLC); research-grade often ≥98% or ≥99% |
| Form | Lyophilized powder (white to off-white) |
| Storage | −20°C (long-term, lyophilized, desiccated); 2–8°C (reconstituted, short-term); protect from light and moisture; avoid repeated freeze-thaw cycles |
| Solubility | Soluble in sterile water, bacteriostatic water, or saline (typically ≥5–10 mg/mL in PBS or water with sonication/gentle agitation; also soluble in DMSO/ethanol ~10 mg/mL; reconstitute at ≥100 µg/mL for stability) |
| All products offered by Premier Research are intended for laboratory research use only. These materials are not for human or veterinary consumption, medical use, diagnostic procedures, or therapeutic applications. Statements on this website are for informational and educational purposes only and have not been evaluated by the U.S. Food and Drug Administration (FDA). By accessing this site, you confirm that you are a qualified researcher or institution representative and agree to use all materials in accordance with applicable laws, regulations, and safety guidelines. |
