UK-registered supplier · Research use only
Every batch, independently tested.
We publish the certificate before a batch goes on sale — matched to the lot number printed on your vial, and analysed by a laboratory with no stake in the result.
The proof
The certificate describes the vial in your hand
Not a sample. Not last year’s batch. The lot number on the report is the lot number on your label.
- Independent. Analysis is carried out by an accredited third-party laboratory — never in-house.
- Published first. The report goes into the COA library before the batch is listed for sale.
- Verifiable. Each report carries the laboratory’s own reference number, so you can confirm it at source.
purity
How we verify
What every batch is tested for
HPLC retention time
Confirms the material elutes where a reference standard says it should. The first question that matters: is this what you ordered?
Quantified, not asserted
The sample is separated into its constituent peaks and the target quantified as a percentage of the whole, reported on the certificate.
Batch-matched certification
Every analysis is tied to a single production lot, so the document describes the material in your hand.
The testing roadmap
The panel is expanding
Identity and purity are what we run today. These are what comes next. We would rather name two assays we are genuinely adding than a dozen we are not.
HPLC
Identity and purity on every batch we have certified, by an independent accredited laboratory.
Endotoxin (LAL)
Quantifies bacterial endotoxin — the pyrogenic contamination an HPLC trace cannot show you.
LC-MS
Mass confirmation of identity, separating the target from impurities that share a retention time.
Planned, not current. This page changes the day that changes.
See the evidence before you spend anything
Every published certificate is free to read, and so is the research library.