Retatrutide 40mg in a pen-format unit.
For research reference only. Check the linked batch and lab documents before relying on a unit.
Mechanism
Targets
A single peptide agonist of the GIP, GLP-1 and glucagon receptors.
Reference data
Reference values for the molecule from the Synedica library. They were not measured on this batch.
Lab testing
Identity and description
Confirms the substance and its appearance match the specification.
Appearance
Visual inspection, Ph. Eur. 2.2.1
SpecificationClear, colourless solution, free from visible particles
ResultConforms
Identity
ESI-MS, ≤ 5 ppm
SpecificationConfirmed [M+5H]⁵⁺ = 947.3
ResultConfirmed
Strength and purity
How much active ingredient is present, and how much of it is the intended compound.
Assay (content)
RP-HPLC-UV, C18, 220 nm
Specification95.0 – 105.0% of label claim
Result101.9%
Purity
RP-HPLC-UV, C18, 220 nm
Specification≥ 98.0%
Result99.0%
Related substances
RP-HPLC-UV, area normalisation
Specification≤ 2.0% total
Result1.0%
Safety and contaminants
Microbial, endotoxin, particle and elemental impurity limits.
Visible particles
Ph. Eur. 2.9.20
SpecificationPractically free from visible particles
ResultConforms
Particulate matter (sub-visible)
Light obscuration, Ph. Eur. 2.9.19
SpecificationMeets Ph. Eur. limits for parenteral use
ResultConforms
Sterility
Membrane filtration, Ph. Eur. 2.6.1
SpecificationNo growth at 14 days
ResultConforms
Bacterial endotoxins
LAL kinetic chromogenic, Ph. Eur. 2.6.14
Specification< 10.0 EU/mL
Result< 0.13 EU/mL
Elemental impurities
ICP-MS, ICH Q3D / Ph. Eur. 2.4.20
SpecificationMeets ICH Q3D parenteral limits
ResultConforms
Solution and container
Physical properties of the solution and the integrity of its container.
pH
Potentiometry, Ph. Eur. 2.2.3
Specification7.0 – 8.0
Result7.20
Osmolality
Ph. Eur. 2.2.35
Specification270 – 330 mOsm/kg
Result285 mOsm/kg
Preservative content
RP-HPLC-UV (m-cresol)
Specification85.0 – 115.0% of label claim
Result95.1%
Extractable volume
Ph. Eur. 2.9.17
Specification≥ label claim
ResultConforms
Container closure integrity
Dye ingress, ASTM F1929
SpecificationNo ingress
ResultConforms
Traceability
01
Batch produced
SYN-RET040-2106
02
Laboratory analysis
Synedica Analytical Laboratories
15 tests
03
Certificate issued
SYN-COA-2026-RET040-2106
2026-07-13
04
Unit code printed
One code per unit
05
You verify
Enter the code on this page
Packaging security
Unit code
Reta Pen 40mg
The 6-character code is under the scratch-off panel on the pack.
A genuine pack carries a holographic seal, a tamper seal and a scratch-off panel over the unit QR code and its 6-character code.
The 60mg pen holds 60mg in 3ml and has a published instruction booklet. The fill volume of the 40mg pen is not published yet.
No. Synedica formulations are supplied for laboratory research use only.
Check that the holographic seal and the tamper seal are intact. Then scratch off the panel and scan the unit QR code, or enter its 6-character code in the form on this page.
Certificates are listed by batch number in the certificate register. Match it to the batch number printed on your pack.
Research Use Only
Material referenced on this site is supplied for laboratory and analytical research use only. It is not a drug, biologic, medical device, dietary supplement, or cosmetic, is not intended for human or veterinary use, and has not been evaluated by the U.S. Food and Drug Administration. Nothing on this site is medical advice or a recommendation to diagnose, treat, cure, or prevent any condition. Visitors are solely responsible for determining and complying with the laws applicable to research material in their jurisdiction.
Reta Pen 40mg
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