Amino-dPEG?12–t-butyl ester, product number QBD-10281, is a carbonyl- and amine-reactive, single molecular weight polyethylene glycol (PEG) product with a discrete chain length. The compound consists of a primary amine and a propionic acid tert-butyl ester on opposite ends of a discrete PEG (dPEG?) spacer. The amine end of the molecule reacts readily with aldehydes and ketones to form reducible Schiff bases and with carboxylic acids and their active esters (NHS, TFP) to form amide bonds. A tert-butyl ester group protects the propionic acid end of the product. The ester is cleavable with trifluoroacetic acid (TFA), leaving the propionic acid moiety free to react with amines either by activation with an acylation reagent or by direct coupling to an amine using a carbodiimide.nThis product can be used in peptide synthesis, protein modification, other forms of supramolecular construction, and as a novel, monoprotected heterobifunctional crosslinker. The dPEG? spacer is not a dispersed polymer with a range of chain lengths and molecular weights but a very high purity, single molecular weight PEG chain with a discrete chain length. One of the advantages of dPEG? compounds is that analyses of conjugates made with dPEG? linkers are simplified since only one chain length and molecular weight of PEG is present. Moreover, our amphiphilic dPEG? products impart water solubility to conjugates made with them, often improving the performance of the conjugate compared to the parent molecule.nPublished applications for Amino-dPEG?12–t-butyl ester include the following:nDevelopment of anti-fouling surfaces;nCreation of targeted NIR and non-peptidic SPECT imaging products to act as guides for surgical removal of cancerous growths; and,nCreation of highly specific crosslinkers for the development of antibody-drug conjugates (ADCs).
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無色至淺琥珀色油狀物;儲存條件下為固體
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Click Chemistry Tools(CCT)公司位于美國亞利桑那州斯科茨代爾(Scottsdale,AZ)。自公司成立以來,一致致力于不斷開發(fā)和擴展一系列連接產(chǎn)品。他們利用特別新的研究成果研發(fā)生產(chǎn)出新穎的交聯(lián)和標記試劑。產(chǎn)品被廣泛用于藥物研發(fā)、癌癥治療以及各類診斷技術(shù)等。此外,CCT還可以提供個性化的定制產(chǎn)品,已滿足不同用戶的需求。目前CCT的產(chǎn)品線主要包括:Azides(Biotin-Azides)試劑、Bis-sulfone交聯(lián)試劑、DBCO試劑、TCO試劑、Terminal Alkyne試劑、Tetrazine試劑、標記試劑盒以及分選用底物等。nFluoroprobes公司位于美國亞利桑那州斯科茨代爾(Scottsdale, AZ),自成立以來,一直致力于不斷開發(fā)一系列的連接(linker)產(chǎn)品。利用特別新的研究成果研發(fā)生產(chǎn)出各類新穎的交聯(lián)和標記試劑。其產(chǎn)品被廣泛用于藥物研發(fā)與篩選、疾病治療方法和診斷技術(shù)等領(lǐng)域。此外,F(xiàn)luoroprobes還可以根據(jù)客戶的個性化需求提供各類定制連接產(chǎn)品。代表產(chǎn)品有Classic Fluorescent Dyes, AZDye, Cyanine Dyes, IR Dyes, MB dyes以及一些標記試劑盒等。nQuanta Biodesign公司位于美國中部的俄亥俄州,成立于1997年。也是專注于生產(chǎn)研發(fā)各類標記產(chǎn)品的品牌之一。其研發(fā)的產(chǎn)品與dPEG技術(shù)相結(jié)合,生產(chǎn)出他們獨有的專利產(chǎn)品dPEG Building Blocks and Linkers,被廣泛用于細胞治療和分子診斷等研究領(lǐng)域。另外,還可為廣大科研工作者提供多種化學修飾試劑以及傳統(tǒng)Liner等。n目前上述三個品牌都已被被Vectorlabs收購并整合到Vectorlabs產(chǎn)品中