What we evaluate

• Identity confirmation (e.g., mass spectrometry) to verify the compound matches the label.

• Purity assessment (commonly HPLC). Target purity is listed on the COA for each batch.

• Quantity/assay to confirm the amount is within an acceptable range for the labeled fill.

• Where applicable, contamination screening such as sterility and bacterial endotoxins (commonly aligned to USP methods).

• Heavy metals screening may be performed for select products (often via ICP-MS).

Acceptance criteria

Acceptance criteria can vary by compound and intended laboratory method. The definitive specifications and results are documented on the batch’s Certificate of Analysis (COA).

Continuous improvement

Analytical standards evolve. Solyn periodically updates test panels and methods as better approaches become available and as customer research needs change.