Certificates of Analysis

What a COA Verifies

A Certificate of Analysis (COA) is a document issued by an independent third-party laboratory that confirms the characteristics of a research compound batch. For each product, a COA verifies:

• Purity percentage, confirmed by HPLC analysis
• Compound identity and molecular weight confirmation
• Physical appearance of the lyophilized or crystalline material
• Sterility and batch information

Why It Matters for Research Integrity

Reliable research depends on knowing exactly what is in each vial. COA documentation gives researchers verifiable confirmation of purity and identity before any laboratory work begins, supporting reproducibility and data integrity. All Pepvela products are for laboratory research purposes only and are not for human consumption.

Our Testing Process

Every research compound batch undergoes high-performance liquid chromatography (HPLC) analysis performed by independent third-party laboratories. This process separates and quantifies the components of a sample, allowing precise verification of purity and identity before a batch is made available for research inquiry.

Testing is conducted per batch, so documentation always reflects the specific lot being supplied.

What Is Tested

Each batch is evaluated across the following parameters:

• Purity percentage (98%+ target, confirmed by HPLC)
• Compound identity and molecular weight confirmation
• Physical appearance of the material
• Sterility and batch consistency