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 甲氧基PEG活性酯 取代率

mPEG-NHS

外觀：白色固體或粉末

PEG可選分子量: 550,750,1000,2000,3400，5000，10000,20000,40000

溶解度:溶于DMSO,DMF,DCM，溶于水。

純度：>95%

保存：-20℃，*保存，避光，干燥

產(chǎn)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.

結(jié)構(gòu)式：

供應(yīng)商：杭州新喬生物科技有限公司

  杭州新喬生物科技有限公司是國內(nèi)的PEG衍生試劑供應(yīng)商，我公司可以提供各種高分子PEG衍生物，分子量從1000-20000不等，涉及甲氧基PEG|氨基PEG|羧基PEG|巰基PEG|疊氮PEG|八臂PEG|四臂PEG|活性酯PEG|葉酸PEG|生物素PEG|馬來酰亞胺PEG|熒光素PEG|羅丹明PEG|丙烯酸酯PEG|磷脂PEG|琥珀酰亞胺PEG|炔基PEG|羥基PEG|葉酸PEG|硅烷PEG等基團(tuán)，同時我公司新推出了單分散的小分子量PEG/PEO衍生物，PEG/PEO的重復(fù)單元從2個-24個不等，產(chǎn)品純度高達(dá)98%以上。目前公司的PEG類產(chǎn)品 來源于十幾個和和國內(nèi)的PEG，我們與國內(nèi)實(shí)驗(yàn)室聯(lián)合開發(fā)各種高附加值的PEG產(chǎn)品，還可以提供特殊PEG產(chǎn)品的定制服務(wù)，洽談。