NEL-R3 is the Never Enough Labs catalog code for Retatrutide, supplied as a lyophilized powder for in-vitro laboratory research. Identity and purity for your specific lot are documented on the accompanying Certificate of Analysis.
Specifications
| Product Code | NEL-R3 |
|---|---|
| Compound | Retatrutide |
| CAS Number | 2381089-83-2 — widely cited but not confirmed in an independent primary registry; treat as provisional |
| Molecular Formula | C221H342N46O68 |
| Molecular Weight | 4731.3 g/mol |
| Backbone Length | 39 residues |
| Structural Features | Aib at positions 2 and 20, alpha-methyl-Leu at position 13. Lys17 is epsilon-acylated with a C20 diacid via a gamma-Glu and a single AEEA spacer. C-terminally amidated. |
| Pharmacology Class | Triple GLP-1, GIP and glucagon receptor agonist |
| Purity | Verified per lot by HPLC — see the lot-specific Certificate of Analysis for the exact figure. |
| Physical Form | Lyophilized powder |
| Solubility | Approximately 20 mg/mL in water at pH 9; approximately 50 mg/mL in DMSO with sonication. |
| Storage | Lyophilized: -20 °C sealed, dry and dark, under inert gas where possible. Reconstituted: aliquot and store at -20 °C; avoid repeated freeze-thaw cycles. |
| Regulatory Status | Investigational compound. Not approved as a medicine in any jurisdiction. Material supplied here is research-grade and is not a pharmaceutical product. |
| Intended Use | In-vitro laboratory research only |
About the product code
This item is listed under the catalog code NEL-R3 rather than the compound name. The compound identity is stated in full in the specification table above and confirmed independently on the lot-specific Certificate of Analysis, so nothing about what you receive is ambiguous. Codes are searchable by lot number in the COA Library.
Testing and documentation
Every lot is analysed by an independent laboratory using High-Performance Liquid Chromatography (HPLC) and Mass Spectrometry (MS) to confirm identity and purity before release. The Certificate of Analysis for your lot is attached to this listing and is searchable in the COA Library. See also how to read a Certificate of Analysis.
Handling
Bring the vial to room temperature before opening to limit condensation. Direct the diluent against the vial wall rather than onto the powder, and swirl rather than shake. Record the lot number and reconstitution date; the storage conditions above apply from that point forward. See our reconstitution guide.
Research use only. This material is sold exclusively for in-vitro laboratory research by qualified persons 21 years of age or older. It is not a drug, food, cosmetic or dietary supplement. Not for human or veterinary use. Not for diagnostic or therapeutic use.
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