Quality
Verify a lot
Enter the lot number from the vial label to see the certificate of analysis issued for that lot. Certificates are published when a lot is released.
The lot number is printed on the vial label, e.g. L240915-01.
How we test
Every released lot is sampled and sent to an independent analytical laboratory. The lab’s full certificate reports purity by reversed-phase HPLC at 220 nm against the lot specification, identity by electrospray mass spectrometry (observed versus calculated mass), net peptide content, water content by Karl Fischer titration, and appearance. The certificate on this page shows purity, identity, net content, appearance, and the manufacture and retest dates, and links the full certificate (PDF) when it’s published. A lot is released only when every result meets specification; anything else is rejected and never assigned a lot number you could look up here.
Need the full instrument report, chromatogram, or SDS for a lot? Email [email protected] with the lot number.