Verify a certificate of analysis.

Enter the lot number or access code from the certificate QR code, vial label, or packing slip. Anyone can search — no account required.

Try: PR-4351NL4351PRPR-4497

How to read a result

What a certificate covers

Lot & access code — The identifiers printed on the vial label and packing slip.
Report ID — Our internal identifier for the submission, unique to that sample.
Purity — The purity figure measured by RP-HPLC.
Identity — Whether the mass-spec result was consistent with the stated compound.
Status — Only certificates marked released appear in this registry.

Scope

One sample, one certificate — A result speaks to the sample we received and analyzed, not to any other lot or shipment.
Not a safety clearance — These are analytical measurements for laboratory research materials, not a fitness determination for any other use.
Absence is not a verdict — A lot that returns no result may simply never have been submitted to us, or may still be in analysis.

Holding a lot number that returns nothing here? Email lab@northlineanalytical.com and we will tell you whether that sample came through this lab.

Testing your own material

Submit samples and released certificates are posted here by default — searchable by anyone you hand a lot number to.