Documentation · Quality Assurance
Certificates of Analysis
Every batch shipped from US Wholesale is tested by an independent third-party laboratory. Identity, purity by HPLC/MS, and lot traceability are documented on every order. For research use only.
HPLC/MS purity verificationIndependent third-party labs24-hour document turnaroundPer-batch lot traceability
Research use only. COA documents are provided to qualified research organizations. Products are not intended for human or veterinary use. Purity verified by HPLC/MS on every batch.
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What every COA includes
Each Certificate of Analysis is issued by an independent third-party analytical laboratory against the specific batch shipped with your order. COA documents are released to approved wholesale accounts and included in every shipment.
- Identity confirmation
- Molecular identity verified by mass spectrometry (MS), confirming the compound matches the stated peptide sequence and molecular weight.
- Purity by HPLC
- High-performance liquid chromatography (HPLC) analysis verifying 99%+ purity for catalog-grade product. Trace impurity profile included.
- Batch and lot traceability
- Each COA is issued against a specific production batch or lot number, enabling full upstream traceability from your order to the production run.
How to request or verify
COA documents are released to verified wholesale accounts. Custom synthesis and non-catalog projects may require additional time depending on analytical lab scheduling.
24-hour turnaround
COA documents for approved accounts are fulfilled within 24 business hours of request. Included automatically with every shipped order.
Search by SKU or product name
Enter the SKU from your order confirmation or packing slip. You can also search by product name using the lookup below.
Request documentation
Select the product to initiate a COA request. Approved wholesale accounts receive documents within 24 business hours.
Verify with the issuing lab
Each COA includes the issuing laboratory's contact information for independent verification of results.
For research use only. Not for human or veterinary use. These statements have not been evaluated by the Food and Drug Administration. Products are not intended to diagnose, treat, cure, or prevent any disease. COA documents are provided to qualified research organizations upon request and are subject to account verification.
Need account access or custom documentation?
Wholesale accounts receive full COA access with every order. For custom synthesis or bulk API requests, contact our documentation team directly.