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Certificates of analysis

Lab results

Every lot we release is analysed by a third-party laboratory before a single vial ships. Search by compound, lot number or lab, and open the certificate that matches the batch printed on your vial.

Category
Assay
LotCompoundPurity TestedLaboratoryResultCertificate
How to read one

What a certificate
actually proves.

HPLC purity

Reverse-phase chromatography separates the target chain from truncated and deleted sequences. The percentage is the area of the main peak against everything else on the trace.

Mass-spec identity

Electrospray ionisation confirms the observed molecular mass matches the theoretical mass of the declared sequence. Purity without identity proves nothing.

Endotoxin (LAL)

A limulus amebocyte lysate assay measures bacterial endotoxin load, reported in EU per milligram. Relevant for any cell-based work.

Water content

Karl Fischer titration on the lyophilised cake. Residual moisture drives both mass accuracy and long-term stability.

Lot traceability

The lot on the certificate is the lot printed on your vial. If the two do not match, do not use the material — contact us instead.

Independence

Analysis is commissioned from laboratories that do not synthesise our material and are named on the certificate.