Boc-21-amino-4,7,10,13,16,19-hexaoxaheneicosanoic acid(Boc-NH-PEG6-CH2CH2COOH), 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!