3-Oxo-1-phenyl-2,7,10,13,16,19,22,25,28-nonaoxa-4-azahentriacontan-31-oic acid(Cbz-NH-PEG8-C2-acid), 95%

*This document is like a lab demo—an example Certificate of Analysis (COA) that showcases what a COA looks like but may not match the latest batch in all its glory. Think of it as a chemistry experiment: close, but not quite the final reaction!