Metabolic signaling
GLP-3 RT
Investigational peptide that binds three metabolic receptors at once.
Specification
- Presentation
- 10 mg lyophilised vial
- Total peptide
- 10 mg
- Vial capacity
- To be determined: vial capacity in mL, from the supplier's packing spec
- Price per vial
- $59.00$50.1515% off
- Price per mg
- $5.90/mg$5.02/mg
Certificate of analysis
A certificate of analysis is the document a laboratory issues for one specific batch, reporting what testing found in that batch. It is batch-specific: a certificate for a different lot tells you nothing about yours, which is why every figure below names the lot it came from.
LOT RT2608001
Latest99.4%purity by RP-HPLC
Spec ≥99.0%
| Test | Result | Spec |
|---|---|---|
| Identity | Not on certificate | |
| Water content | ≤2.0% | ≤5.0% |
| Heavy metals | Not detected | ≤10 ppm |
| Sterility | ＜0.6% | ≤2.0% |
| Tested | Aug 8, 2026 | |
3 assays passed
Batch 1 of 1, lot RT2608001
Storage
Lyophilised peptides of this class are handled under standard laboratory practice: kept sealed and cold, protected from light and repeated temperature cycling, and allowed to reach room temperature before a vial is opened so condensation does not form on the powder.
Stated conditionsTo be determined: storage conditions from supplier COA
Description
Retatrutide is a synthetic 39-amino-acid peptide. It was designed in a laboratory and is not a molecule the body produces — the sequence borrows from natural gut hormones but has been deliberately modified. What makes it structurally unusual is that it was engineered to engage three different receptors, where earlier peptides in the same family engage one or two.
Cells in your gut, pancreas, liver and brain carry receptors that respond to hormones released around the time you eat. Retatrutide binds three of them. Two — the GLP-1 receptor and the GIP receptor — belong to what physiologists call the incretin system, which helps coordinate insulin release and how quickly the stomach empties. The third, the glucagon receptor, sits mostly on liver cells and is involved in mobilising stored energy. Hitting all three at once is the entire design intent, and characterising what that combination does is what the ongoing Phase 3 programme exists to measure.
Technical data
- Sequence
- To be determined: full modified sequence — verify against the Lilly patent before publishing
- Molecular formula
- C221H342N46O68
- Molecular weight
- 4731.33 g/mol
- CAS number
- 2381089-83-2
- Purity
- 99.4% by RP-HPLCfrom lot RT2608001
- Physical form
- To be determined: physical form from supplier COA
- Solubility
- To be determined: solubility data from supplier COA
Purity, physical form and solubility above are transcribed from the certificate of analysis for lot RT2608001. A certificate covers one batch — every lot we hold a document for. Fields still marked to be determined are not on that certificate.