N-methyl-N'-methyl-O-(m-PEG4)-O'-(propargyl-PEG4)-Cy3 is a PEG derivative containing cyanine dye with excitation/emission maximum 555/570 nm and an alkyne group, which enables copper-catalyzed Click Chemistry. The hydophilic PEG spacer increases solubility in aqueous media.

N-methyl-N'-methyl-O-(m-PEG4)-O'-(azide-PEG4)-Cy3 is a PEG derivative containing cyanine dye with excitation/emission maximum 555/570 nm as well as an azide group, which enables Click Chemistry. The hydophilic PEG spacer increases solubility in aqueous media.

N-(m-PEG4)-N'-(azide-PEG4)-Cy3 is a PEG derivative containing cyanine dye with excitation/emission maximum 555/570 nm as well as an azide group, which enables Click Chemistry. The hydophilic PEG spacer increases solubility in aqueous media.

N-hydroxypropyl-N'-(azide-PEG3)-Cy3 is a PEG derivative containing cyanine dye with excitation/emission maximum 555/570 nm as well as an azide group, which enables Click Chemistry. The hydophilic PEG spacer increases solubility in aqueous media.

N-methyl-N'-(azide-PEG3)-Cy3 is a PEG derivative containing cyanine dye with excitation/emission maximum 555/570 nm as well as an azide group, which enables Click Chemistry. The hydophilic PEG spacer increases solubility in aqueous media.

Bromoacetamido-PEG5-DOTA is a PEG Linker.

DOTA-(t-Butyl)3-PEG5-azide is a PEG Linker.

DOTA-PEG5-azide is a PEG Linker

DOTA-PEG5-amine HCl salt is a PEG Linker.

DNP-PEG6-t-butyl ester is a PEG Linker. PEG Linkers may be useful in the development of antibody drug conjugates.

DNP-PEG6-acid is a PEG Linker. PEG Linkers may be useful in the development of antibody drug conjugates.

DOTA-PEG5-C6-DBCO is a PEG Linker.

DBCO-PEG5-DBCO is a PEG derivative containing a reactive two DBCO groups and a hydrophilic PEG spacer arm. DBCO will react with azide-bearing compounds or biomolecules to form a stable triazole linkage without copper catalyst. The hydrophilic PEG spacer arm can increase water solubility and a membrane permability.

Carboxyrhodamine 110PEG4-DBCO is a PEG derivative containing a DBCO group and a rhodamine dye. DBCO enables copper free Click Chemistry and will react with azide-bearing compounds or biomolecules to form a stable triazole linkage. This reagent will be an ideal alternative to copper intolerant applications and can be used to label cells, tissues, biomarkers or nanoparticles.

DBCO-PEG4-alcohol is a PEG derivative containing a DBCO moiety and a terminal primary hydroxyl group. The hydroxyl can react with a variety of functional groups and the hydrophilic PEG spacer arm can provide better solubility to labeled molecules.

DBCO-PEG4-PFP ester is a PEG derivative. PEG Linkers and derivatives may be useful in the development of antibody drug conjugates.

DBCO-PEG8-NHS ester is a PEG Linker. PEG Linkers may be useful in the development of antibody drug conjugates.

DBCO-PEG1-NHS ester is a PEG Linker. PEG Linkers may be useful in the development of antibody drug conjugates.

DBCO-PEG8-acid is a PEG Linker. PEG Linkers may be useful in the development of antibody drug conjugates.

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

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

Azidoethyl-SS-propionic NHS ester is a cleavable PEG Linker. PEG Linkers may be useful in the development of antibody drug conjugates.

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

Bromoacetamido-PEG2-azide is a PEG derivative containing a bromide group and a terminal azide. The hydrophilic PEG spacer increases solubility in aqueous media. The bromide (Br) is a very good leaving group for nucleophilic substitution reactions. The azide group can react with alkyne, BCN, DBCO via Click Chemistry to yield a stable triazole linkage.

t-Boc-N-amido-PEG10-NHS ester is a Boc PEG Linker. The Boc group can be deprotected in mildly acidic conditions. PEG Linkers may be useful in the development of antibody drug conjugates (ADCs).

t-Boc-N-amido-PEG10-acid is a PEG derivative containing a terminal carboxylic acid and Boc-protected amino group. 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. The Boc group can be deprotected under mild acidic conditions to form the free amine.

Bis-PEG17-NHS ester is a PEG derivative containing two NHS ester groups. The NHS ester can be used to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules. PEG Linkers may be useful in the development of antibody drug conjugates.

Bis-PEG13-NHS ester is a PEG derivative containing two NHS ester groups. The hydrophilic PEG spacer increases solubility in aqueous media. The NHS ester can be used to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules. PEG Linkers may be useful in the development of antibody drug conjugates.

Bis-PEG10-NHS esteris a PEG derivative containing two NHS ester groups. The NHS ester can be used to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules. PEG Linkers may be useful in the development of antibody drug conjugates.

Bis-PEG17-acid is a PEG derivative containing two terminal carboxylic acid groups. The terminal carboxylic acids can be reacted with primary amine groups in the presence of activators (e.g. EDC, or DCC) to form a stable amide bond. PEG Linkers may be useful in the development of antibody drug conjugates.