mPEG-NHS 甲氧基PEG活性酯 取代率

mPEG-NHS 甲氧基PEG活性酯 取代率

mPEG-NHS

外观：白色固体或粉末

PEG可选分子量: 550,750,1000,2000,3400，5000，10000,20000,40000

溶解度:溶于DMSO,DMF,DCM，溶于水。

纯度：>95%

保存：-20℃，*保存，避光，干燥

产品描述：N-hydroxylsuccinimide (NHS) functionalized polyethylene glycol (PEG-NHS) is an amino (-NH₂) reactive PEG derivative that can be used to modify protein, peptide or any other surfaces with their available amino groups. NHS esters react with primary amine groups at pH 7~8.5 to form stable amide bonds.Compared to other PEG NHS ester derivatives, our succinimidyl carbonate (SC) functionalized mPEG-NHS offers superior reactivity and higher stability in aqueous solution. NHS esters react with deprotonated primary amines, therefore, the reaction requires neutral to basic pH values to proceed. Primary amines react with NHS esters by nucleophilic attack and NHS is released as a byproduct. Hydrolysis of the NHS-ester competes with the reaction in aqueous solution and increases with increasing pH.

结构式：

供应商：杭州新乔生物科技有限公司

  杭州新乔生物科技有限公司是国内的PEG衍生试剂供应商，我公司可以提供各种高分子PEG衍生物，分子量从1000-20000不等，涉及甲氧基PEG|氨基PEG|羧基PEG|巯基PEG|叠氮PEG|八臂PEG|四臂PEG|活性酯PEG|叶酸PEG|生物素PEG|马来酰亚胺PEG|荧光素PEG|罗丹明PEG|丙烯酸酯PEG|磷脂PEG|琥珀酰亚胺PEG|炔基PEG|羟基PEG|叶酸PEG|硅烷PEG等基团，同时我公司新推出了单分散的小分子量PEG/PEO衍生物，PEG/PEO的重复单元从2个-24个不等，产品纯度高达98%以上。目前公司的PEG类产品 来源于十几个和和国内的PEG，我们与国内实验室联合开发各种高附加值的PEG产品，还可以提供特殊PEG产品的定制服务，洽谈。