Verify a lot number
Every Certus vial carries a lot code on its label. Type it below to pull up the certificate for that exact batch. No account, no email address, and it works whether or not you bought from us.
75 lots on file.Browse every certificate
Where the code is
Printed on the vial label directly beneath the compound name, in the form CP-COMPOUND-YYMM plus a run letter. It is printed as part of the label, not applied as a separate sticker.
What you will see
The full release panel for that lot: HPLC purity, LC-MS identity, net peptide content, water and residual solvent, endotoxin and sterility — with the specification alongside each measured value.
If it does not resolve
Check for a transcription slip first; the lookup already tolerates spacing and dash variations. If it still fails and you bought it as ours, contact us — we genuinely want to know about it.
Rather browse the whole archive? All 75 lab reports