Synedica Laboratories

Analytical Sciences Division

Certificate of Analysis

Accession No.SYN-COA-2026-RET040-2104
Issued ToSynedica Analytical Laboratories
Report DateJul 13, 2026

Sample Identification

ProductRetatrutide 40mg Injection Pen KitBatchSYN-RET040-2104
AnalyteRetatrutideManufacturedJul 13, 2026
FormatInjection PenExpiryJul 13, 2028
Nominal Amount40mgAssayed Purity98.9%
Molecular FormulaC₂₂₁H₃₄₂N₄₄O₆₈Net Content39.6 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 particlesConforms✓ PASS
IdentityESI-MS, ≤ 5 ppmConfirmed [M+5H]⁵⁺ = 947.3Confirmed✓ PASS
Assay (content)RP-HPLC-UV, C18, 220 nm95.0 – 105.0% of label claim99.1%✓ PASS
PurityRP-HPLC-UV, C18, 220 nm≥ 98.0%98.9%✓ PASS
Related substancesRP-HPLC-UV, area normalisation≤ 2.0% total1.1%✓ PASS
pHPotentiometry, Ph. Eur. 2.2.37.0 – 8.07.27✓ PASS
OsmolalityPh. Eur. 2.2.35270 – 330 mOsm/kg296 mOsm/kg✓ PASS
Preservative contentRP-HPLC-UV (m-cresol)85.0 – 115.0% of label claim106.1%✓ PASS
Extractable volumePh. Eur. 2.9.17≥ label claimConforms✓ PASS
Container closure integrityDye ingress, ASTM F1929No ingressConforms✓ PASS
Visible particlesPh. Eur. 2.9.20Practically free from visible particlesConforms✓ PASS
Particulate matter (sub-visible)Light obscuration, Ph. Eur. 2.9.19Meets Ph. Eur. limits for parenteral useConforms✓ PASS
SterilityMembrane filtration, Ph. Eur. 2.6.1No growth at 14 daysConforms✓ PASS
Bacterial endotoxinsLAL kinetic chromogenic, Ph. Eur. 2.6.14< 10.0 EU/mL< 0.23 EU/mL✓ PASS
Elemental impuritiesICP-MS, ICH Q3D / Ph. Eur. 2.4.20Meets ICH Q3D parenteral limitsConforms✓ PASS

15 total · 15 passed · 0 failed · 0 pending

Instrument Data

HPLC-UV Chromatogram (220 nm)
02468101214160100200300400500600700Response (mAU)Retention time (min)RetatrutidetR 12.70 min · 98.9% 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-RETA40-0001. 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-RET040-2104

Analytical Sciences Division

Verify this certificate at

https://syn.vercel.app/en/coa/SYN-COA-2026-RET040-2104

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.