Bromoacetamido-PEG4-acid is a PEG derivative containing a bromide group and a terminal carboxylic acid. The bromide (Br) is a very good leaving group for nucleophilic substitution reactions. The terminal carboxylic acid can be reacted with primary amine groups in the presence of activators (e.g. EDC, or DCC) to form a stable amide bond.

Ald-Ph-PEG4-t-butyl ester is a PEG Linker.

Bromo-PEG2-CH2CO2tBu is a PEG derivative containing a bromide group and a t-butyl protected carboxyl group. The hydrophilic PEG spacer increases solubility in aqueous media. The bromide (Br) is a very good leaving group for nucleophilic substitution reactions. The t-butyl protected carboxyl group can be deprotected under acidic conditions.

Mal-PEG2-PFP is a PEG Linker

Mal-PEG5-PFP is a PEG Linker.

Dde Biotin-PEG4-DBCO is a cleavable reagent for introduction of a biotin moiety to azide-containing biomolecules using copper-free Click Chemistry. Dde protecting group allows efficient release of captured biotinylated molecules from streptavidin under mild conditions with hydrazine. PEG Linkers may be useful in the development of antibody drug conjugates.

m-PEG5-phosphonic acid ethyl ester is a PEG Linker.

Azidoethyl-SS-ethylamine is a cleavable PEG linker. PEG Linkers may be useful in the development of antibody drug conjugates.

m-PEG5-phosphonic acid is a PEG Linker.

Acid-PEG6-mono-methyl ester is a PEG Linker

THP-SS-PEG1-Tos is a cleavable PEG Linker. PEG Linkers may be useful in the development of antibody drug conjugates.

Azido-PEG3-(CH2)3OH is a PEG derivative containing an azide group and a terminal hydroxyl group. The hydrophilic PEG spacer increases solubility in aqueous media. The azide group can react with alkyne, BCN, DBCO via Click Chemistry to yield a stable triazole linkage. The hydroxyl group enables further derivatization or replacement with other reactive functional groups.

m-PEG7-(CH2)3-alcohol is a PEG derivative containing a hydroxyl group. The hydroxyl group enables further derivatization or replacement with other reactive functional groups. The hydrophilic PEG spacer increases solubility in aqueous media.

m-PEG5-sulfonic acid is a PEG derivative

Azido-PEG1-PFP ester is a PEG derivative containing an azide group and a PFP group. The azide group enables Click Chemistry. The PFP ester is a better leaving group compared to a hydroxyl group and can be used to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules. The hydrophilic PEG spacer adds to the water solubility of this reagent.

Bromo-PEG4-CH2CO2tBu is a PEG derivative containing a bromide group and a t-butyl protected carboxyl group. The hydrophilic PEG spacer increases solubility in aqueous media. The bromide (Br) is a very good leaving group for nucleophilic substitution reactions. The t-butyl protected carboxyl group can be deprotected under acidic conditions.

Acid-PEG3-mono-methyl ester is a PEg derivative. PEG Linkers and derivatives may be useful in the development of antibody drug conjugates.

Bromo-PEG2-acid is a PEG derivative containing a bromide group and a terminal carboxylic acid. The bromide (Br) is a very good leaving group for nucleophilic substitution reactions. The terminal carboxylic acid can be reacted with primary amine groups in the presence of activators (e.g. EDC, or DCC) to form a stable amide bond.

2-(t-Butoxycarbonylamido)-1,3-bis (t-butoxycarbonylethoxy)propane is a non-PEG crosslinker. Crosslinkers may be useful in the development of antibody drug conjugates.

Ald-Ph-PEG2-NH-Boc is a PEG Linker

Benzyl-PEG5-CH2CO2tBu is a Benzyl PEG Linker. PEG Linkers may be useful in the development of antibody drug conjugates.

THP-SS-PEG1-t-butyl ester is a cleavable PEG Linker. PEG Linkers may be useful in the development of antibody drug conjugates.

Methylamino-PEG2-acid HCl salt is a PEG derivative containing a carboxylic acid with a methylamine group. The hydrophilic PEG spacer increases solubility in aqueous media. The methylamine group is reactive with carboxylic acids, carbonyls (ketone, aldehyde) etc. The terminal carboxylic acid can be reacted with primary amine groups in the presence of activators (e.g. EDC, or DCC) to form a stable amide bond.

t-Boc-Aminooxy-PEG2-alcohol is a PEG derivative containing a Boc-protected aminooxy group and an alcohol group. The protected aminooxy can be deprotected under mild acidic conditions and then can be reacted with an aldehyde or ketone group to form a stable oxime linkage. The hydroxyl group enables further derivatization or replacement with other reactive functional groups. Aminooxy PEG Linkers may be useful in bioconjugation experiments.

Propargyl-PEG1-SS-PEG1-acid is a cleavable PEG Linker. PEG Linkers may be useful in the development of antibody drug conjugates.

Propargyl-PEG2-t-butyl ester is a PEG derivative containing a propargyl group and a t-butyl protected carboxyl group. The propargyl group can be reacted with azide-bearing compounds or biomolecules via copper catalyzed azide-alkyne Click Chemistry to yield a stable triazole linkage. The t-butyl protected carboxyl group can be deprotected under acidic conditions. The hydrophilic PEG spacer increases solubility in aqueous media.

exo-BCN-PEG2-Boc-amine is a PEG derivative containing a BCN group and a Boc-protected amine. The protected amine can be deprotected under mild acidic conditions. The BCN group can react with azide-tagged biomolecules. PEG Linkers and PEG derivatives may be useful in the development of antibody drug conjugates.

endo-BCN-PEG4-NHS ester is a PEG derivative containing an NHS ester group and a BCN group. The NHS ester can be used to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules. The BCN group can react with azide-tagged biomolecules. PEG Linkers may be useful in the development of antibody drug conjugates and drug delivery methods.

endo-BCN-PEG2-alcohol is a PEG derivative containing a BCN group and a hydroxyl group. The BCN group can react with azide-tagged biomolecules. The hydroxyl group enables further derivatization or replacement with other reactive functional groups. PEG Linkers may be useful in the development of antibody drug conjugates and drug delivery methods.

endo-BCN-PEG3-Boc-amine is a PEG derivative containing a BCN group and a Boc-protected amine. The BCN group can react with azide-tagged biomolecules. PEG Linkers may be useful in the development of antibody drug conjugates and drug delivery methods.