SPDP-dPEG®₂4-NHS酯-100mg

背景资料

SPDP-dPEG®24-NHS ester, product number QBD-10379, is a long (80 atoms), hydrophilic, non-immunogenic, heterobifunctional crosslinker that has the same functionality as the widely popular, but unfortunately hydrophobic, SPDP crosslinker. It contains an amine-reactive N-hydroxysuccinimidyl (NHS) ester on one end of the dPEG®24 linker and a thiol-reactive SPDP (also known as OPSS) reactive group on the other end. The longer spacer arm may facilitate the reaction of the SPDP end of the molecule with buried thiol groups. Moreover, unlike the traditional SPDP crosslinkers, the over-conjugation of proteins or peptides with QBD-10379 will not cause the precipitation of conjugates due to excessive hydrophobicity. Among the most popular heterobifunctional crosslinking reagents used in bioconjugate chemistry are those compounds that conjugate molecules containing free amine groups with molecules that contain sulfhydryl groups. SPDP (N-succinimidyl 3-(2-pyridyldithio)-propionate) is one of the most popular versions of this type of crosslinker. Unfortunately, SPDP and its popular varieties (LC-SPDP and Sulfo-LC-SPDP) are hydrophobic molecules. When conjugated to biomolecules, care must be taken not to modify the target molecules too much, because this can precipitate the conjugate products. By contrast, SPDP-dPEG®24-NHS ester, product number QBD-10379, is used like SPDP and its related hydrophobic products. However, precautions against overly modifying the target molecule are not necessary. The water-soluble dPEG® product will not cause the resulting conjugates to precipitate due to excessive hydrophobicity.
产品形式为白色至类白色至浅黄色固体

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品牌介绍

Click Chemistry Tools（CCT）公司位于美国亚利桑那州斯科茨代尔（Scottsdale,AZ）。自公司成立以来，一致致力于不断开发和扩展一系列连接产品。他们利用特别新的研究成果研发生产出新颖的交联和标记试剂。产品被广泛用于药物研发、癌症治疗以及各类诊断技术等。此外，CCT还可以提供个性化的定制产品，已满足不同用户的需求。目前CCT的产品线主要包括：Azides（Biotin-Azides）试剂、Bis-sulfone交联试剂、DBCO试剂、TCO试剂、Terminal Alkyne试剂、Tetrazine试剂、标记试剂盒以及分选用底物等。 Fluoroprobes公司位于美国亚利桑那州斯科茨代尔(Scottsdale, AZ)，自成立以来，一直致力于不断开发一系列的连接(linker)产品。利用特别新的研究成果研发生产出各类新颖的交联和标记试剂。其产品被广泛用于药物研发与筛选、疾病治疗方法和诊断技术等领域。此外，Fluoroprobes还可以根据客户的个性化需求提供各类定制连接产品。代表产品有Classic Fluorescent Dyes, AZDye, Cyanine Dyes, IR Dyes, MB dyes以及一些标记试剂盒等。 Quanta Biodesign公司位于美国中部的俄亥俄州，成立于1997年。也是专注于生产研发各类标记产品的品牌之一。其研发的产品与dPEG技术相结合，生产出他们独有的专利产品dPEG Building Blocks and Linkers，被广泛用于细胞治疗和分子诊断等研究领域。另外，还可为广大科研工作者提供多种化学修饰试剂以及传统Liner等。 目前上述三个品牌都已被被Vectorlabs收购并整合到Vectorlabs产品中

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