PT-141
Synthetic cyclic heptapeptide supplied by Loti Labs as lyophilized powder for laboratory research. Specifications, the current certificate of analysis and the full batch history, all on one page.
PT-141 (Bremelanotide) 10MG. For laboratory, analytical and research use only.Compound specifications
| Compound | Bremelanotide (PT-141) |
| Class | Synthetic cyclic heptapeptide |
| Molecular formula | C50H68N14O10 |
| Molecular weight | 1025.2 g/mol |
| CAS number | 189691-06-3 |
| Form | Lyophilized powder, sealed vial |
| Formats | 10 mg vial |
Latest certificates of analysis
10 mg vial
Batch history
| Test date | Format | Batch | Purity | Identity | Laboratory | |
|---|---|---|---|---|---|---|
| Oct 12, 2026 | 10 mg vial | LL-PT1-926 | >99.9% | Confirmed | Krause Analytical | Certificate |
| Jun 17, 2026 | 10 mg vial | LL-PT1-526 | 99.9% | Conforms | Bioviridian | Certificate |
How every batch is tested
Every Loti Labs batch is tested by an independent, U.S.-based third-party laboratory. Purity is measured by HPLC and identity is confirmed by mass spectrometry. Where a certificate includes an endotoxin screen, the result is shown above. Each certificate is archived permanently under its batch number, so earlier batches stay on record after a new one arrives. Search the complete COA archive.
Questions researchers ask
What purity is the current PT-141 batch?
10 mg vial: batch LL-PT1-926 tested at >99.9% purity by HPLC-UV/MS on Oct 12, 2026, identity confirmed by mass spectrometry.
What is the molecular formula and weight of PT-141?
PT-141 has molecular formula C50H68N14O10 and a molecular weight of 1025.2 g/mol, CAS 189691-06-3.
How do I find the certificate for my vial?
Match the lot number printed on the vial label to the batch column in the history table, or search it in the Loti Labs COA archive. Every certificate is kept permanently under its batch number.
What is PT-141 from Loti Labs intended for?
Loti Labs supplies PT-141 strictly for laboratory, analytical and research use. It is not for human or veterinary use, and it is not a drug, food or cosmetic.
Available to registered researchers
Ordering opens after you sign in or create a free research account.
RESEARCH USE ONLY. This page is provided for laboratory, analytical and research reference. Products are not drugs, foods or cosmetics and are not for human or veterinary use.