Verification guide
Short answer
To verify a peptide batch, match the vial lot number to the COA lot number, confirm the compound name and vial size, review HPLC purity and identity results, check the test date, and keep the COA with the receiving record.
Step 1: match the lot
The lot number printed on the vial label or packing record should match the lot or batch number on the COA. If the numbers do not match, the document may not belong to that vial.
Step 2: confirm identity and method
Review whether the COA lists an analytical method such as HPLC for purity and LC-MS or mass spectrometry for identity. Identity data matters because purity alone does not prove the compound name.
Step 3: review date and storage
The test date should be visible, and the storage guidance should be compatible with the material format. Lyophilized peptides are typically stored cold, dry, sealed, and protected from repeated moisture exposure.
Step 4: retain the record
A verified COA belongs in the procurement file with the purchase order, receiving log, and any internal QC notes. HALO links verification from the Lab Results page so buyers can cross-check lots after receipt.
Direct answers
What is batch-specific documentation?
Documentation tied to a particular production or test lot, rather than a generic or example certificate.
Can one COA cover all future lots?
No. A COA should be specific to the batch it describes.
Where should HALO buyers verify lots?
Use the Lab Results page or the COA/proof card linked from the product listing, then match the vial lot to the published record.
Research use only. HALO materials and educational content are for qualified laboratory research only. Not for human or veterinary use.
