Why this matters
Lot consistency is the difference.
In preclinical peptide research, lot-to-lot variability is the single biggest source of irreproducible results. A 95% pure batch and a 99.5% pure batch behave differently in the same assay. Wrong-peptide substitution (a vendor labels CJC-1295 but ships ipamorelin) is a documented failure mode in the research peptide market.
We test every lot, against the same assays, with the same acceptance thresholds. The COA you receive is the receipt — proof that this exact vial passed our gate.
Our acceptance gates
What we require.
| Test | Method | Acceptance threshold |
|---|
| Purity | HPLC (UV detection, C18 reverse-phase) | ≥99.0% |
| Identity | Mass spectrometry (ESI-MS) | Within 1 Da of expected MW |
| Concentration | HPLC quantification vs reference | ±2% of labeled mass |
| Endotoxin | LAL gel-clot or kinetic chromogenic | < 0.5 EU/mg |
| Appearance | Visual inspection (post-lyophilization) | White to off-white powder, no particulate |
| Solubility | Reconstitution check in BAC water | Complete dissolution within 60s with gentle agitation |
Failures at any gate result in lot rejection. No exceptions, no "close enough" releases.
Lot traceability
From sequence to your bench.
- Source. Raw peptide synthesized at a cGMP-compliant facility. Origin and identity documented at intake.
- Verification. Independent third-party lab performs HPLC + MS + endotoxin. COA written, signed, archived.
- Lyophilization. Freeze-dried under vacuum, sealed in glass vials with crimped aluminum + butyl rubber stopper. Each vial labeled with compound, mass, lot number, and "Research Use Only."
- QC release. Lot held in quarantine until all three test results clear. Released to inventory only after sign-off.
- Fulfillment. Lot number recorded against your order so the exact vial you receive is traceable to its COA.
What the COA contains
Every certificate, every batch.
- Compound name, CAS number, molecular formula, molecular weight
- Lot number and test date
- HPLC purity result (%) and chromatogram
- Mass spectrometry result (Da) and spectrum
- Endotoxin result (EU/mg) and method
- Appearance, solubility, and concentration verification
- Testing facility name + signed authorization
- Storage and handling recommendations
The COA arrives by email within 24 hours of shipment. Reply to that email to request a different lot or additional documentation at any time.
Independent verification
Why "third-party" matters.
Many vendors publish "in-house" COAs — testing performed by the same facility that synthesized the compound. We use an independent contract analytical laboratory with no commercial stake in the result. The lab does not know whether a sample is going to a marketing flyer or a research paper. They report what the instrument shows.
This is also why we ship the same lot to multiple buyers — so anyone can re-test a vial against our published COA and get the same answer.
Compliance
What we are not.
MOG Research is not a compounding pharmacy or outsourcing facility as defined under the FD&C Act. We do not produce pharmaceutical drug products. All compounds are supplied as research chemicals for laboratory use only. The statements on this site have not been evaluated by the FDA.
Quality standards documented here apply to laboratory-grade material. They are not equivalent to USP, EP, or pharmaceutical-grade specifications. Research peptides are not approved for human use.