Second independent report for this lot. Lot RT-2502-A also has an ILS Laboratories report (Aug 10, 2026, 99.83% by HPLC, certificate COA-2026-6LOOFG): read the ILS report. Two labs, same lot.
Report summary
| Field | Value |
|---|---|
| Product | Retatrutide 10mg (family: Retatrutide) |
| Lot identifier | RT-2502-A |
| Reported purity | 99.86% (HPLC-UV) |
| Identity | Confirmed by LC-MS (Retatrutide (GLP RT)) |
| Endotoxin | Pass, 2 replicates (LAL assay, USP <85>, sensitivity ≤0.05 EU/mL) |
| Appearance | White lyophilized powder |
| Sample received / reported | Oct 14, 2026 / Oct 15, 2026 |
| Accession number | 2610140671 |
| Issuing laboratory | Freedom Diagnostics (FreedomDiagnosticsTesting.com) |
| Laboratory lookup | Enter search code Arct2610140671 on the Freedom Diagnostics certificate lookup |
| Original report | View the analytical report (PDF) |
| Identity reference | CAS 2381089-83-2 |
Full test panel
| Test | Result | Note |
|---|---|---|
| Identity (LC-MS) | Confirmed | Retatrutide (GLP RT) |
| Purity (HPLC-UV) | 99.86% | Main peak area |
| Net content: Retatrutide | 10.26 mg | Report only (labeled 10 mg) |
| Endotoxin, replicate 1 (LAL, USP <85>) | Pass | Sensitivity ≤0.05 EU/mL |
| Endotoxin, replicate 2 (LAL, USP <85>) | Pass | Sensitivity ≤0.05 EU/mL |
Every row above is read from accession 2610140671 issued by Freedom Diagnostics for lot RT-2502-A. Results apply to the sample the laboratory tested.
What this report establishes
The results above describe the sample of lot RT-2502-A that Freedom Diagnostics analyzed (received Oct 14, 2026, reported Oct 15, 2026). Identity was confirmed by mass spectrometry, purity by HPLC with UV detection, and two endotoxin replicates passed. It does not describe other lots or strengths, and it does not establish any attribute the report does not list. Confirm that the lot printed on a vial label matches RT-2502-A before applying this record to it.
How to read this report
Open the PDF and read it in this order. First the header: client, accession number (2610140671), search code, dates and lot (RT-2502-A), which must match this page and the vial label. Second the analytical results: identity by LC-MS, purity by HPLC-UV and net content. Third the endotoxin method line and both replicates. Last the chromatogram and the mass-confirmation spectra, where a shoulder or a secondary peak tells you more than the percentage does. Guides: how to read a certificate of analysis, HPLC vs mass spectrometry, why the label weight is not the peptide weight.
Same material, other listings
- Retatrutide 10mg (ILS Laboratories report, same lot): separate report for lot RT-2502-A
Common questions about this report
- What does the 99.86% figure on this report mean?
- It is the main peak's share of the total detected peak area in the HPLC-UV run Freedom Diagnostics reported on Oct 15, 2026. It is a chromatographic purity result for that sample of lot RT-2502-A; it is not a claim about other lots, and it is not a weight or net-content figure.
- How was identity confirmed?
- By LC-MS: HPLC with UV detection coupled with mass spectrometry. The PDF shows the chromatogram and the mass-confirmation spectra for Retatrutide (GLP RT).
- What does the endotoxin result say?
- The laboratory ran a Limulus Amebocyte Lysate (LAL) assay per USP <85> in two replicates; both are reported as Pass, with an assay sensitivity of ≤0.05 EU/mL.
- How do I know the PDF is genuine?
- Enter search code Arct2610140671 on Freedom Diagnostics's certificate lookup page. The lookup is hosted by the laboratory, not by this site, which is what makes the check independent.
- Does this report apply to the vial I received?
- Only if the lot number printed on your vial label is RT-2502-A. A different lot has a different report; if your lot is not listed on this site, ask support with the lot number.
How to verify this document
- Open the Freedom Diagnostics certificate lookup and enter search code
Arct2610140671. - Compare the product, lot, dates and results with the PDF.
- Record the verification date next to the lot in the receiving log (how to verify a certificate).