Propargyl-PEG4-NHS Ester

• Product Name: Propargyl-PEG4-NHS Ester
• Catalog Number: AG-1503
• CAS#: 1428629-70-2
• Molecular Formula: C16H23NO8
• Molecular Weight: 357.36
• Purity: > 90%*

Our NHS Ester maintains over 95% purity initially but may experience slight degradation over time due to its instability. However, we assure a minimum purity of over 90% upon shipping.