Nanocs PG2-FCSN-2k NHS-SS-PEG-Fluorescein 2000 Da NHS-SS-PEG-荧光素
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NHS-dithio-PEG-FITC:
NHS-SS-PEG- Fluorescein is one of cleavable reactive fluorescent PEG dyes offered by Nanocs. FITC (Fluorescein) is a bright green fluorescent dye with exication/emission wavelength at 495/515 nm. NHS (succinimidyl ester) group can react with primary amine group at alkaline pH with high efficiency. Reaction between NHS and amine allows conjugation of FITC dye to proteins, antibodies, peptides, nuleic acids and other materials quickly and easily. Dithio bond (-SS-) between NHS and PEG fluorescein can be cleaved by dithiol reducing reagent such as DTT or TCEP, thus conjugated fluorescein dye can be released subsequently through reduction. PEG linker between NHS and fluorescein offers better water solubility, less steric hindrance and enhanced stability.
Physical Properties:
- Appearance: Organge/yellow solid;
- Solubility: Soluble in aqeous solution, DMSO or DMF;
- Reactive group: Succinimidyl ester (NHS);
- Reactive toward: Primary amine (-NH2);
- Excitation/Emission: 495 nm/515 nm;
Storage Conditions:
- Store at -20 0C. Desiccate. Protect from light.
NHS-二硫代-PEG-FITC：
NHS-SS-PEG-荧光素是 Nanocs 提供的一种可切割的活性荧光 PEG 染料。FITC（荧光素）是一种亮绿色荧光染料，激发/发射波长为 495/515 nm。NHS（琥珀酰亚胺酯）基团可以在碱性pH下与伯胺基团高效反应。NHS 和胺之间的反应允许 FITC 染料快速轻松地与蛋白质、抗体、肽、核酸和其他材料结合。NHS和PEG荧光素之间的二硫键(-SS-)可以被二硫醇还原剂如DTT或TCEP裂解，因此共轭荧光素染料可以随后通过还原释放。NHS 和荧光素之间的 PEG 接头提供更好的水溶性、更少的空间位阻和增强的稳定性。
物理性质：
- 外观：橙色/黄色固体；
- 溶解性：溶于水溶液、DMSO或DMF；
- 反应基团：琥珀酰亚胺酯（NHS）；
- 反应性：伯胺（-NH2）；
- 激发/发射：495 nm/515 nm；
储藏条件：
- 储存于-20 0 C。干燥。避光。
Nanocs—PEG修饰剂
Nanocs Inc.是PEG修饰剂(PEG derivatives, PEGylation试剂)供应商,Nanocs提供种类齐全的PEG衍生物，从磷脂PEGs到NHS-PEG,马来酰亚胺PEG,巯基PEG,氨基PEG,叠氮PEG,DSPE PEG,荧光PEG等荧光PEGs产品。
修饰性PEG应用于医学研究，药物释放，纳米技术和新材料研究，细胞培养。 以及配体研究，多肽合成支持，接枝高分子化合物，新材料和聚乙二醇改性功能涂层等活性化合物方面。
Nanocs PG2-FCSN-2k NHS-SS-PEG-Fluorescein 2000 Da 5 mg
品牌：Nanocs
货号：PG2-FCSN-2k
描述：NHS-SS-PEG-Fluorescein 2000 Da
规格：5 mg