Quality control
How we decide a lot is good enough to ship.
Every batch is released against the same panel. The results go on the certificate that travels with your vial — not a template, the actual numbers for that lot.
Release panel
Applied to every lot before it leaves the laboratory.
- Purity
- ≥ 98.0%
- Identity
- ESI-MS
- Appearance
- Visual
- Water content
- Karl Fischer
- Residual TFA
- Reported
- Net peptide content
- Reported
Reverse-phase HPLC with UV detection at 214 nm, where the peptide bond absorbs. Area percent of the main peak against total integrated area.
Electrospray ionisation mass spectrometry. Observed mass is reported next to the theoretical mass for the sequence, so you can check the match yourself.
Colour and physical state of the lyophilised material, recorded at release.
Residual moisture after lyophilisation. High water content shortens shelf life.
Trifluoroacetic acid carried over from purification. We report the figure rather than omitting it.
How much of the vial mass is peptide, excluding counter-ions and water. It is what you are actually paying for.
What the certificate says
One certificate per lot, signed by the analyst who ran it. No pooled documents covering several batches, and no certificate issued before the assay.
Ask for a sample certificateCertificate of analysis
Fields are blank on purpose: a specimen certificate with invented results would defeat the point of publishing one.
What we do not claim
Stating this plainly is cheaper for both of us than letting you assume it and find out later.
Not a GMP facility
Doverin Labs operates as a research laboratory. Material is not manufactured under Good Manufacturing Practice and is not suitable for clinical use.
Not sterile, not endotoxin-tested by default
Sterility and endotoxin testing are available on request and quoted separately. They are not part of the standard release panel.
Research use only
Nothing we supply is intended for human or veterinary use, diagnosis or treatment. We do not provide dosing guidance.