Propargyl-PEG5-CH2COOH NHS Ester

• Product Name: Propargyl-PEG5-CH2COOH NHS Ester
• Catalog Number: AG-1844
• CAS#: 1161883-51-7
• Molecular Formula: C17H25NO9
• Molecular Weight: 387.39
• 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.