Polyethylene Glycol (PEGs & PEOs)

NH2-PEG4-Lys(t-Boc)-NH-m-PEG24 is a PEG derivative containing a terminal primary amine and a t-Boc protected lysine. The primary amine can react with carboxylic acids, activated NHS esters and other carbonyl groups. The t-Boc protecting group can

NHS-PEG4-(m-PEG12)3-ester is a branched PEG derivative with a terminal NHS ester. The NHS ester can be used to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules.

NHS-PEG4-(m-PEG12)3-ester is a branched PEG derivative with a terminal NHS ester. The NHS ester can be used to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules.

NHS-PEG4-(m-PEG12)3-ester is a branched PEG derivative with a terminal NHS ester. The NHS ester can be used to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules.

NHS-PEG4-SPDP.

NHS-SS-biotin is a cleavable reagent which can efficiently introduce a biotin moiety to amine-containing biomolecules. This biotin compound is membrane-permeable and useful for intracellular labeling. The disulfide bond in this linker can be cleaved

NHS-SS-biotin is a cleavable reagent which can efficiently introduce a biotin moiety to amine-containing biomolecules. This biotin compound is membrane-permeable and useful for intracellular labeling. The disulfide bond in this linker can be cleaved

NHS-SS-biotin is a cleavable reagent which can efficiently introduce a biotin moiety to amine-containing biomolecules. This biotin compound is membrane-permeable and useful for intracellular labeling. The disulfide bond in this linker can be cleaved

Nonaethylene glycol is a polymer consisting of ethylene glycol repeating units and terminal hydroxyl groups. The ethylene glycol units have high water solubility properties. The hydroxyl groups can be reacted in order to further derivatize the

Nonaethylene glycol is a polymer consisting of ethylene glycol repeating units and terminal hydroxyl groups. The ethylene glycol units have high water solubility properties. The hydroxyl groups can be reacted in order to further derivatize the

Nonaethylene glycol is a polymer consisting of ethylene glycol repeating units and terminal hydroxyl groups. The ethylene glycol units have high water solubility properties. The hydroxyl groups can be reacted in order to further derivatize the

O,O′-Bis(2-aminopropyl) polypropylene glycol-block-polyethylene glycol-block-polypropylene glycol.