- 中文名稱
MAL-dPEG?甘草酸-1000 mg
- 英文名字
- MAL-dPEG???-acid-1000 mg
- 供應(yīng)商
- Click Chemistry Tools
- 產(chǎn)品貨號(hào)
- CCT-QBD-10315-1000
- 產(chǎn)品報(bào)價(jià)
- ¥詢價(jià)/1000mg

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- 購買方式
- 銀行轉(zhuǎn)賬、電匯、支票、現(xiàn)金,在線支付寶及網(wǎng)銀支付,或直接與我們電話聯(lián)系。本公司所有產(chǎn)品僅供科研使用,不用于臨床診斷。
- 產(chǎn)品新聞

- 背景資料
- MAL-dPEG?24-酸(產(chǎn)品編號(hào)QBD-10315)是一種交聯(lián)劑,通過離散長度的單分子量聚乙二醇(PEG)鏈將巰基連接到游離胺上。馬來酰亞胺基丙基部分通過邁克爾加成反應(yīng)與巰基反應(yīng)。分子的丙酸末端使用EDC或另一種碳二亞胺直接與游離胺反應(yīng)以形成酰胺鍵。或者,用N-羥基琥珀酰亞胺(NHS)、2,3,5,6-四氟苯酚(TFP)或一些其它酰化劑活化丙酸基團(tuán)允許在溫和的受控條件下形成酰胺鍵。
- 產(chǎn)品描述
- MAL-dPEG?24-acid, product number QBD-10315, is a crosslinker that joins sulfhydryl groups to free amines through a single molecular weight polyethylene glycol (PEG) chain of discrete length. The maleimidopropyl moiety reacts with sulfhydryl groups via a Michael addition reaction. The propionic acid terminus of the molecule reacts directly with free amines using EDC or another carbodiimide to form amide bonds. Alternatively, activation of the propionic acid group with N-hydroxysuccinimide (NHS), 2,3,5,6-tetrafluorophenol (TFP), or some other acylating agent permits amide bond formation under mild, controlled conditions.nChemical couplings between free amines and free thiols are among the most popular, most useful crosslinking reactions in bioconjugate chemistry. These syntheses require heterobifunctional reagents that bridge the two groups. While traditional crosslinkers are hydrophobic molecules, Vector Laboratories' crosslinking products are water-soluble, amphiphilic, single molecular weight PEG compounds with discrete chain lengths, hence the dPEG? tradename under which we sell them. Almost inevitably, the conjugation of conventional hydrophobic crosslinking reagents to biomolecules triggers problems such as aggregation and precipitation of the conjugates. Conversely, these problems do not occur with our water-soluble, non-immunogenic dPEG? crosslinkers.nThe reaction of the maleimide end of MAL-dPEG?24-acid with a sulfhydryl proceeds optimally at pH 6.5 – 7.5. Use the lowest reasonable pH within this range. Above pH 7.5, free amines compete with free thiols at the maleimide reaction site, which can cause confusing results. Moreover, at higher pH values, the maleimide ring may open to form unreactive maleamic acid.nAfter the maleimide end of the molecule reacts with a sulfhydryl, the terminal propionic acid group may be left unreacted for charge modification or the conjugate or activated with an acylating agent such as NHS or TFP. The active ester then reacts with free amines to complete the crosslink.
- 產(chǎn)品形式
- 白色至琥珀色固體
- 保存建議
- 其他
- 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(kuò)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(biāo)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(gè)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(biāo)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(biāo)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(gè)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(biāo)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(biāo)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(dú)有的專利產(chǎn)品dPEG Building Blocks and Linkers,被廣泛用于細(xì)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(xué)修飾試劑以及傳統(tǒng)Liner等。n目前上述三個(gè)品牌都已被被Vectorlabs收購并整合到Vectorlabs產(chǎn)品中

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該頁面的中文產(chǎn)品信息的翻譯,僅供參考。準(zhǔn)確的產(chǎn)品信息請以廠家的英文說明書為準(zhǔn)。下單前,請瀏覽說明書確認(rèn)。
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