About Retatrutide Research Peptide
This retatrutide research peptide is a research-grade synthetic peptide. Researchers study it in GIP, GLP-1 and glucagon receptor signaling. Because retatrutide is a lipidated 39-amino-acid peptide, scientists also investigate it as an agonist at all three receptors.
Some suppliers also list it by its development code, LY3437943.
Retatrutide Specifications
| Product | Retatrutide |
| CAS number | 2381089-83-2 |
| Molecular weight | ~4,731.4 g/mol |
| Length | 39 residues (includes non-standard amino acids and a lipid modification) |
| Sequence | [INSERT FROM SUPPLIER COA BEFORE PUBLISHING] |
| Presentation | Lyophilized powder |
| Research area | GIP receptor (GIPR), GLP-1 receptor (GLP-1R), glucagon receptor (GCGR), receptor signaling |
| Reconstitution | Required. Solutions sold separately. |
| Purity | See the batch Certificate of Analysis |
Testing and Certificate of Analysis for Retatrutide Research Peptide
An independent third-party laboratory tests every Zentrax batch, and we publish the results as a batch-level Certificate of Analysis. First, find the lot number on your vial. Then match it to its report in the COA library, so you can verify identity and purity. Because we test each lot separately, a report for one batch does not describe another.
Storage and Handling
Store the lyophilized material away from moisture, light and excessive heat. However, storage needs vary by lot, so follow the product-specific certificate of analysis. Also avoid repeated freeze-thaw cycles. For general tips, see our guide on how to store lyophilized peptides.
Shipping and Support
We process orders within 24 to 48 hours and ship within the United States with tracking. As a result, you can follow every package. For details, see the Shipping Policy and Refund Policy. If you have questions, check the research peptides FAQ or contact the team through the Contact page. You can also read the published literature on retatrutide on PubMed.
For in vitro research use only. Not for human or veterinary use. Not evaluated by the FDA.





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