A Certificate of Analysis (COA) is a lab-generated document detailing key information about your peptide’s identity, purity, and content. At Midwest Peptide, we work with Chromate, a trusted U.S.-based laboratory, to provide reliable, traceable COAs for every product. All peptides are also tested for endotoxins, ensuring your research is supported by verified, high-quality compounds.

Identity
Peptide identity confirmed via Mass Spectrometry (MS) – verifies molecular structure accuracy.
Quantity
The vial contains 11.15 mg of material, slightly over the labeled 10 mg, which is common in high-quality batches to ensure value.
Purity
The peptide has a purity of 99.976%, indicating an extremely clean sample with minimal impurities or byproducts.
Endotoxins
Endotoxin levels were measured at less than 0.25 EU per vial, which is well within safe limits for research use and indicates no significant bacterial contamination.
Traceable COA
Each COA can also be verified by utilizing Chromate COA Lookup and inputting the report number and access code found on the bottom of the COA. You may also scan the QR code to pull up the report.