Polyethylene Glycol (PEGs & PEOs)

4-(N-Boc-amino)-1,6-heptanedioic acid is a branched PEG derivative with a Boc protected amino group and two terminal carboxylic acids. The protected amine can be deprotected by acidic conditions. The terminal carboxylic acids can be reacted with

4-(N-Boc-amino)-1,6-heptanedioic acid is a branched PEG derivative with a Boc protected amino group and two terminal carboxylic acids. The protected amine can be deprotected by acidic conditions. The terminal carboxylic acids can be reacted with

4-(N-Boc-amino)-1,6-heptanedioic acid is a branched PEG derivative with a Boc protected amino group and two terminal carboxylic acids. The protected amine can be deprotected by acidic conditions. The terminal carboxylic acids can be reacted with

A new class of thiol-specific conjugation reagents consisting of a thiol-reactive 3-arylpropiolonitrile (APN) group, with good stability in aqueous media. The APN group allows the targeted coupling of thiols in biomolecules, and results in stable

A new class of thiol-specific conjugation reagents consisting of a thiol-reactive 3-arylpropiolonitrile (APN) group, with good stability in aqueous media. The APN group allows the targeted coupling of thiols in biomolecules, and results in stable

4-Azide-TFP-Amide-PEG4-acid contains an aryl azide and a carboxylic acid with a PEG spacer to increase aqueous solubility and decrease steric hinderance during ligation. The aryl azide can be photo-activated with UV light (250 to 350 nm) for

4-Azide-TFP-Amide-PEG4-acid contains an aryl azide and a carboxylic acid with a PEG spacer to increase aqueous solubility and decrease steric hinderance during ligation. The aryl azide can be photo-activated with UV light (250 to 350 nm) for

4-Azide-TFP-Amide-PEG4-acid contains an aryl azide and a carboxylic acid with a PEG spacer to increase aqueous solubility and decrease steric hinderance during ligation. The aryl azide can be photo-activated with UV light (250 to 350 nm) for

4-Azide-TFP-Amide-SS-propionic acid contains an aryl azide, a cleavable disulfide bond, and a carboxylic acid. The aryl azide can be photo-activated with UV light (250 to 350 nm) for conjugation with biomolecules. The carboxylic acid can be reacted

4-Azide-TFP-Amide-SS-propionic acid contains an aryl azide, a cleavable disulfide bond, and a carboxylic acid. The aryl azide can be photo-activated with UV light (250 to 350 nm) for conjugation with biomolecules. The carboxylic acid can be reacted

4-bromobutylphosphonic acid contains a bromine group and a phosphonic acid group. The bromine is a good leaving group. The hydrophilic properties of the PEG linkers increase the water solubility of the compound in aqueous media.

4-bromobutylphosphonic acid contains a bromine group and a phosphonic acid group. The bromine is a good leaving group. The hydrophilic properties of the PEG linkers increase the water solubility of the compound in aqueous media.