PEG

Bromo-PEG5-phosphonic acid is a hydrophilic PEG linker containing a bromine group and a phosphonic acid group. The bromine is a good leaving group. The hydrophilic PEG chain increases the water solubility of compounds in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

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. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Tetraethyl decane-1,10-diylbis(phosphonate) Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Biotin-EDA-PEG5-NHS enables simple an efficient biotinylation of antibodies, proteins and any other primary amine-containing biomolecules. NHS-activated biotin compound can react efficiently with primary amino groups (-NH2) to form stable, irreversible amide bonds. The hydrophilic PEG spacer arm imparts water solubility that is transferred to the biotinylated molecule. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Biotin-EDA-PEG4-PFP is a bifunctional PEG linker with a biotin group and an activated PFP ester. The PFP ester is easily displaced by amines to rapidly form amides under mild conditions, while the biotin group is useful for affinity-based applications such as pull-down assays or for ligating with streptavidin proteins.

Bromo-PEG5-azide contain a bromide group and a terminal azide. The bromide (Br) is a very good leaving group for nucleophilic reactions. The azide group can react with alkyne, BCN, DBCO via Click Chemistry to yield a stable triazole linkage. PEG5 spacer increases solubility in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Thiol-PEG3-t-butyl ester is a PEG linker containing a thiol group and a t-butyl ester. The hydrophilic PEG spacer increases solubility in aqueous media. The thiol group reacts with maleimide, OPSS, vinylsulfone and transition metal surfaces including gold, silver, etc. The t-butyl protected carboxyl group can be deprotected under acidic conditions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Thiol-PEG3-acid is a PEG linker containing a thiol group and a terminal carboxylic acid. The hydrophilic PEG spacer increases solubility in aqueous media. The thiol group reacts with maleimide, OPSS, vinylsulfone and transition metal surfaces including gold, silver, etc. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to form a stable amide bond. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Aminooxy-PEG3-acid HCl salt is a PEG linker containing an aminooxy group and a terminal carboxylic acid. The hydrophilic PEG spacer increases solubility in aqueous media. The aminooxy group can be used in bioconjugation. It reacts with an aldehyde to form an oxime bond. If a reductant is used, it will form a hydroxylamine linkage. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to form a stable amide bond. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries. Aminooxy compounds are very reactive and sensitive; they cannot be stored for long term. Immediate use (within 1 week) is highly recommended.