中文：二苯基环辛炔-四聚乙二醇-活性酯英文：DBCO-PEG4-NHS esterCAS：1427004-19-0产品参数1 Catalog #: Y-PE-2145 Name: DBCO-PEG4-NHS ester CAS: 1427004-19-0 Formula: C34H39N3O10 MW: 649.7 Purity: 95% Availability: In Stock Ships within: 24 hours Storage condition: -20℃ Shipping: Ambient temperatureDBCO-PEG4-NHS Ester is a click chemistry PEG reagent containing NHS ester that is able to react specifically and efficiently with primary amines (e.g. the side chain of lysine residues or aminosilane-coated surfaces) at neutral or slightly basic condition to form a covalent bond. The hydrophilic PEG spacer arm improves water solubility and provides a long and flexible connection that minimizes steric hindrance involved with ligation. DBCO is commonly used for copper-free Click Chemistry reactions.