OS-R3
OS-R3 is Oblivion Science's research-grade Retatrutide — a long-acting triple receptor agonist studied extensively in metabolic research. Supplied as lyophilized powder with batch-specific Certificate of Analysis from an independent accredited laboratory.
About OS-R3 (Retatrutide)
Retatrutide is a synthetic peptide acting as a simultaneous agonist at three key metabolic receptors: glucose-dependent insulinotropic polypeptide (GIP), and the glucagon receptor (GCGR). This multi-receptor mechanism has made it a subject of significant research interest in metabolic biology.
OS-R3 is supplied as lyophilized powder, enabling stable long-term storage and precise reconstitution for research protocols. Each vial includes a lot-specific Certificate of Analysis from an independent ISO/IEC 17025-accredited laboratory.
Research applications
- Metabolic and energy homeostasis studies
- Receptor pharmacology (GIP receptor, GCGR)
- Comparative multi-receptor agonist activity research
- In-vitro receptor binding assays
| Product name | OS-R3 (Retatrutide) |
| CAS number | 2381089-83-2 |
| Molecular weight | ~4,814 Da |
| Purity | ≥99.0% (HPLC verified) |
| Appearance | White to off-white lyophilized powder |
| Format | Lyophilized powder |
| Testing | HPLC, LC-MS, endotoxin |
| Accreditation | ISO/IEC 17025 third-party lab |
| Origin | GMP-certified synthesis facility |
Storage guidelines
Lyophilized powder (unreconstituted)
- Store at −20°C in original sealed vial
- Keep away from direct light and moisture
- Stable for 24+ months under these conditions
- Allow vial to reach room temperature before opening to avoid condensation
After reconstitution
- Store reconstituted solution at −80°C
- Aliquot into single-use volumes to avoid freeze-thaw cycles
- Use within 4–6 weeks of reconstitution
Specific lot stability data is provided on your Certificate of Analysis.
Independent testing & verification
Every batch of OS-R3 is tested by an independent ISO/IEC 17025-accredited laboratory before release. Testing is conducted separately from our synthesis partner.
Tests performed
- HPLC purity analysis — confirms ≥99.0% purity with full chromatogram
- LC-MS molecular weight — confirms correct molecular identity
- Endotoxin testing — LAL assay per USP standards
Your batch-specific COA is included with every order. Contact our team to request a COA before purchase.
