Contract research organization - Glossary

A Contract Research Organization (CRO) is an external service provider hired to perform specialized laboratory testing and research. In the context of peptide verification, an analytical CRO acts as an independent third party that objectively measures samples to issue a batch-specific Certificate of Analysis (COA), ensuring that the quality and identity of a product are verified by an unbiased source.

Analytical CROs verify peptide identity, purity, and safety

An analytical CRO validates a peptide sample by measuring its identity through Mass Spectrometry (MS) and its purity using High-Performance Liquid Chromatography (HPLC). These organizations also conduct safety screenings for contaminants such as residual solvents or endotoxins. This independent third-party verification is the industry gold standard because it separates the testing process from the supplier's potential conflict of interest, providing a level of transparency that a seller's in-house data cannot offer.

How to identify credible CRO reports and distinguish laboratory roles

A credible lab report is issued on the external CRO's official letterhead, ensuring the data originates from an independent laboratory rather than the supplier.
A complete verification report must include both HPLC data for purity and Mass Spectrometry (MS) results for identity.
A Contract Research Organization (CRO) specializes strictly in research, analytical testing, and regulatory compliance, but does not participate in manufacturing.
A Contract Manufacturing Organization (CMO) focuses on the physical, large-scale production of substances.
A Contract Development and Manufacturing Organization (CDMO) provides a combination of both development research and commercial manufacturing services.

Analytical CROs verify peptide identity, purity, and safety

How to identify credible CRO reports and distinguish laboratory roles

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