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Bis-PEG-NHS is a chemical compound that belongs to the family of polyethylene glycol (PEG) derivatives. It is commonly used in drug research and development as a crosslinker or coupling agent for conjugating molecules to create bioconjugates. Bis-PEG-NHS has two NHS (N-hydroxysuccinimide) functional groups that can react with primary amines, such as lysine residues on proteins or amino acids in peptides, to form stable amide bonds.

The use of Bis-PEG-NHS in drug research and development is important because it allows for the creation of bioconjugates with improved properties such as increased solubility, stability, and bioavailability. Bioconjugates are widely used in drug delivery systems, imaging agents, and diagnostics.

The functional groups present in Bis-PEG-NHS, particularly the NHS groups, play a crucial role in the coupling reaction. The NHS ester groups are highly reactive towards primary amines, but also exhibit high selectivity, which makes them ideal for bioconjugation. The two NHS groups in Bis-PEG-NHS offer a higher degree of flexibility and control over the conjugation process, allowing for the creation of specific and homogenous bioconjugates.

Bis-PEG-NHS is a versatile chemical tool with a wide range of applications in drug research and development. Its unique properties and functional groups make it an essential compound for the creation of bioconjugates, and its use will continue to play a significant role in advancing drug discovery and development.


Cat# Name Structure M.W. Purity Pricing
AP11502Bis-PEG1-NHS ester356.29≥95% Pricing
AP10914Bis-PEG2-NHS ester400.34≥95% Pricing
AP11503Bis-PEG3-NHS ester444.39≥95% Pricing
AP11504Bis-PEG4-NHS ester488.44≥95% Pricing
AP11505Bis-PEG5-NHS ester532.50≥95% Pricing
AP11506Bis-PEG6-NHS ester576.55≥95% Pricing
AP11507Bis-PEG7-NHS ester620.60≥95% Pricing
AP13376Bis-PEG8-NHS ester664.7≥98% Pricing
AP11508Bis-PEG9-NHS ester708.71≥95% Pricing
AP11509Bis-PEG10-NHS ester752.76≥95% Pricing
AP11510Bis-PEG11-NHS ester796.82≥95% Pricing
AP13382Bis-PEG12-NHS ester840.9≥97% Pricing
AP11511Bis-PEG13-NHS ester884.92≥95% Pricing
AP11512Bis-PEG17-NHS ester1061.13≥95% Pricing
AP13377Bis-PEG18-NHS ester1105.2≥98% Pricing
AP11513Bis-PE21-NHS ester1237.34≥95% Pricing
AP11514Bis-PEG25-NHS ester1413.55≥95% Pricing

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