How WRS COA Lookup Works

A catalog specification describes an item generally. A Certificate of Analysis (COA) describes analytical results for a defined batch. Keeping those two levels separate helps receiving teams maintain a defensible inventory record for laboratory / in-vitro research.

What you enter: the lot number

Start with the complete lot identifier printed on the vial label. The same identifier may also appear on the packing slip or order record. Open WRS COA Lookup, enter that lot number exactly, and submit the lookup.

The lot number is more specific than a product name or catalog SKU. Multiple batches of one catalog item may exist over time, and each batch can have its own analytical record. Searching by lot avoids treating a generic product document as evidence for a specific unit.

What you get: the batch-matched COA

When a record is available, the lookup loads the PDF associated with the entered lot. Review the document rather than relying on the filename alone. A useful receiving check confirms:

• The compound name on the PDF corresponds to the material received.
• The COA lot number matches the vial label and order documentation.
• Analytical methods are named, with results presented for that lot.
• Report details and figures are legible enough for the laboratory record.

If the lookup returns no certificate, first check for a transcription error. If the exact label identifier still produces no result, contact support before placing the material into active laboratory work.

Why a lot match matters

Lot matching is the chain between the physical material and its analytical report. Without that shared identifier, a COA may describe a different manufacturing batch. The product name, vial size, and catalog page can all look correct while the analytical document still belongs to another lot.

A consistent lot across label, order record, and COA supports traceability, receiving review, and later comparison when a laboratory changes batches. It does not determine whether a material is suitable for a particular experiment; laboratories remain responsible for their own qualification procedures and protocols.

For a deeper explanation of identity, purity, HPLC, MS, and document red flags, read How to Evaluate a Research Peptide COA.

A practical receiving sequence

1. Locate the lot number on the sealed research vial.
2. Confirm the same identifier on available order records.
3. Enter the exact lot at COA Lookup.
4. Open the returned PDF and match the compound and lot fields.
5. Review named methods and reported results under the laboratory’s receiving procedure.
6. File the PDF with the lot-specific inventory record.

FAQ

What should I enter in WRS COA Lookup?

Enter the complete lot number printed on the research vial label, packing slip, or associated order record. Use the identifier exactly as shown so the lookup can locate the corresponding batch record.

What does COA Lookup return?

When the lot is available, the lookup returns the Certificate of Analysis PDF associated with that batch. The document can then be reviewed for the compound name, lot identifier, analytical methods, and reported results.

Why can’t I use a COA from another lot?

Analytical results describe the batch that was tested. A document from another lot does not establish the identity, purity, or other reported attributes of the material in hand, even when the catalog item is the same.

What if no certificate is found?

Check the lot number against the label and order records, then try the exact identifier again. If it still is not found, contact WRS support and keep the material outside active laboratory work until the documentation question is resolved under your receiving procedure.

Verify a lot or review documented catalog items

• Retrieve a certificate: WRS COA Lookup
• Read the analytical guide: How to Evaluate a Research Peptide COA
• Review example catalog records: Triple Agonist (GLP-R), Semaglutide, Tirzepatide, and BPC-157