1) 货号: PSB-4214; 2) 中文品名: 4-臂 聚乙二醇-氯化物, 20k ; 3) 英文品名: 4-Arm PEG-Chloride, 20k ; 4) 生产商: PEGWorks; 5) 描述: 4-Arm PEG-Chloride is a multiarm PEG derivative with chloride groups at each terminal of the four arms connected to one pentaerythritol core. Chloride is a good leaving group for neucleophilic substitution reaction. 4-Arm PEG-Bromide, 4-Arm PEG-Iodide or 4-Arm PEG-Cyanur may be offered through custom synthesis.; 6) 规格: 1g 甄准免费