N,N'-(3,6,9,12,15,18-Hexaoxaicosane-1,20-diyl)bis(3-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)propanamide)(Bis-Mal-PEG6), 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!