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Biotin-PEG4-NHS ester

Biotinylation NHS esters
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2893-100mg 100 mg $145 现货
2893-1g 1 g $590 现货
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Biotin-PEG4-NHS ester is an activated ester for simple and efficient biotin labeling of antibodies, proteins, and other primary amine-containing biomolecules. The NHS ester group reacts efficiently with amino groups by the nucleophilic attack, forming an amide bond and releasing N-Hydroxysuccinimide. Biotin-labeled compounds can then be linked to avidin or streptavidin for further purification or detection. The biotin group is relatively small and doesn’t affect the biological activity of biotinylated proteins.

This reagent features a long PEG4-linker that separates the biotin residue from the target molecule, ensuring efficient binding to avidin or streptavidin. The linker also increases the compound’s water solubility, thereby facilitating bioconjugation. Antibodies labeled with Biotin-PEG4-NHS ester exhibit less aggregation when stored in solution than those labeled with reagents with only hydrocarbon spacers.

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General properties

Appearance: white to off-beige powder
Molecular weight: 588.68
CAS number: 459426-22-3
Molecular formula: C25H40N4O10S
Solubility: water, DMSO, DMF, DCM
Quality control: NMR 1H and HPLC-MS (95+%)
Storage conditions: 12 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Desiccate.
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产品引用

  1. Zhang, L.; Yang, C.; Li, Y.; Niu, S.; Liang, X.; Zhang, Z.; Luo, Q.; Luo, H. Dynamic Changes in the Levels of Amyloid-β 42 Species in the Brain and Periphery of APP/PS1 Mice and Their Significance for Alzheimer’s Disease. Frontiers in Molecular Neuroscience, 2021, 14, 723317. doi: 10.3389/fnmol.2021.723317
This Product is offered and sold for research purposes only. It has not been tested for safety and efficacy in food, drug, medical device, cosmetic, commercial or any other use. Supply does not express or imply authorization to use for any other purpose, including, without limitation, in vitro diagnostic purposes, in the manufacture of food or pharmaceutical products, in medical devices or in cosmetic products.
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