中文：二苯并环辛炔-四聚乙二醇-羧酸英文：DBCO-PEG4-acid，DBCO-PEG4-COOHCAS：1537170-85-6产品参数1 Catalog #: Y-PE-2140 Name: DBCO-PEG4-acid CAS: 1537170-85-6 Formula: C30H36N2O8 MW: 552.6 Purity: 95% Availability: In Stock Ships within: 24 hours Storage condition: -20℃ Shipping: Ambient temperatureDBCO-PEG4-acid is an analog of DBCO-Acid with PEG linker and a DBCO group. The DBCO groups is commonly used for copper-free Click Chemistry reactions due to its strain promoted high energy. The hydrophilic PEG chain allows for increased water solubility. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to form a stable amide bond.