HN-(PEG3-CH2CH2COOH)2/4,7,10,16,19,22-Hexaoxa-13-azapentacosanedioic acid, 98%

*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!