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Home > Products > PEG Derivatives> (NHS) PEGs> mPEG-NHS
mPEG-NHS
Catalog # Pkg Size Price Quantity Shopping Cart
R-1101-x 1g ¥ 650
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結(jié)構(gòu)式
外觀 白色粉末/固體
分子量 PEG分子量可選:1000 2000 3400 5000 10000 20000 40000
溶解度 氯仿、甲醇、DMSO
CAS號(hào) N/A
質(zhì)量控制 95%
儲(chǔ)存條件 -20℃
保存時(shí)間 1年
其他信息 該頁(yè)面報(bào)價(jià)是PEG2000 3400 5000分子量,分子量10K以上單獨(dú)詢價(jià)或不提供,分子量1000及以下單獨(dú)詢價(jià)或不提供
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.
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