Synedica Laboratories

Analytical Sciences Division

Certificate of Analysis

Accession No.SYN-COA-2026-RET040-2105
Issued ToSynedica Analytical Laboratories
Report DateJul 13, 2026

Sample Identification

ProductRetatrutide 40mg Injection Pen KitBatchSYN-RET040-2105
AnalyteRetatrutideManufacturedJul 13, 2026
FormatInjection PenExpiryJul 13, 2028
Nominal Amount40mgAssayed Purity99.3%
Molecular FormulaC₂₂₁H₃₄₂N₄₄O₆₈Net Content39.7 mg
Molecular Weight4,731.4 DaAppearanceClear, colourless solution, free from visible particles
StorageStore at 2–8 °C, protected from light. Do not freeze.

All analysis performed under Synedica documented analytical methods aligned to European Pharmacopoeia (Ph. Eur.) reference procedures — HPLC-UV (C18, 220 nm) for purity and related substances; ESI-MS (≤ 5 ppm) for identity confirmation.

Analytical Results

Test NameMethodSpecificationResultStatus
AppearanceVisual inspection, Ph. Eur. 2.2.1Clear, colourless solution, free from visible particlesConformsPASS
IdentityESI-MS, ≤ 5 ppmConfirmed [M+5H]⁵⁺ = 947.3ConfirmedPASS
Assay (content)RP-HPLC-UV, C18, 220 nm95.0 – 105.0% of label claim100.9%PASS
PurityRP-HPLC-UV, C18, 220 nm≥ 98.0%99.3%PASS
Related substancesRP-HPLC-UV, area normalisation≤ 2.0% total0.7%PASS
pHPotentiometry, Ph. Eur. 2.2.37.0 – 8.07.30PASS
OsmolalityPh. Eur. 2.2.35270 – 330 mOsm/kg300 mOsm/kgPASS
Preservative contentRP-HPLC-UV (m-cresol)85.0 – 115.0% of label claim104.7%PASS
Extractable volumePh. Eur. 2.9.17≥ label claimConformsPASS
Container closure integrityDye ingress, ASTM F1929No ingressConformsPASS
Visible particlesPh. Eur. 2.9.20Practically free from visible particlesConformsPASS
Particulate matter (sub-visible)Light obscuration, Ph. Eur. 2.9.19Meets Ph. Eur. limits for parenteral useConformsPASS
SterilityMembrane filtration, Ph. Eur. 2.6.1No growth at 14 daysConformsPASS
Bacterial endotoxinsLAL kinetic chromogenic, Ph. Eur. 2.6.14< 10.0 EU/mL< 0.32 EU/mLPASS
Elemental impuritiesICP-MS, ICH Q3D / Ph. Eur. 2.4.20Meets ICH Q3D parenteral limitsConformsPASS

15 total · 15 passed · 0 failed · 0 pending

Instrument Data

HPLC-UV Chromatogram (220 nm)
02468101214160100200300400500600700Response (mAU)Retention time (min)RetatrutidetR 12.70 min · 99.3% areaλ 220 nm · C18 150 × 4.6 mm, 5 µm · 0.1% TFA / MeCN gradient · 1.0 mL/min
ESI Mass Spectrum (positive mode)
5517811012124314741704020406080100Relative intensity (%)m/z1578.1[M+3H]³⁺1183.9[M+4H]⁴⁺947.3[M+5H]⁵⁺789.6[M+6H]⁶⁺676.9[M+7H]⁷⁺ESI-MS · positive mode · mass accuracy ≤ 5 ppm

Conclusion

Listed tests marked pass

15 of 15 tests are marked pass.

Full release panel for batch SYN-RETA40-0002. 15 tests performed against documented Synedica specifications.

PASS

Authorisation

Released by

Quality Assurance, Synedica Laboratories

Electronically authorised — no handwritten signature required.

Accreditation: ISO/IEC 17025 aligned methods

SYN-COA-2026-RET040-2105

Analytical Sciences Division

Verify this certificate at

https://syn.vercel.app/en/coa/SYN-COA-2026-RET040-2105

Valid Until: Jul 13, 2028

This Certificate of Analysis is issued by Synedica Laboratories and applies solely to the batch identified above. The formulation described is supplied for research and laboratory use only. Not for human consumption, or for clinical, diagnostic, or therapeutic application. Batch traceability and analytical records are retained by Synedica Laboratories.