Propargyl-PEG2-CH2COOH NHS Ester

• Product Name: Propargyl-PEG2-CH2COOH NHS Ester
• Catalog Number: AG-1841
• CAS#: 1777802-63-7
• Molecular Formula: C11H13NO6
• Molecular Weight: 255.23
• 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.