Methyltetrazine-Sulfo-NHS ester is a water-soluble amine-reactive membrane impermeable labeling reagent. It is useful for applications that are intolerant of organic solvents and can be used to efficiently label antibodies, proteins, and other primary amine-containing macromolecules with the tetrazine moiety in 100% aqueous solution.

Tetrazine-Sulfo-NHS ester is a water-soluble NHS activated tetrazine derivative. This reagent was found to have the fastest kinetics for bioorthogonal reaction with trans-cyclooctene (TCO) as the dienophile. It can be used for simple and efficient labeling of antibodies, proteins and any other primary amine-containing macromolecules with the tetrazine moiety in 100% aqueous solution.

TCO-OH is a biochemical.

2,3,4,6-tetra-o-acetyl-alpha-galactosylpyranosyl bromide is a Sugar-PEGylation reagent.

Propargyl-PEG4-Tos is a PEG derivative containing a tosyl group and a propargyl group. The hydrophilic PEG spacer increases solubility in aqueous media. The tosyl group is a very good leaving group for nucleophilic substitution reactions. 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.

[6-(Diethoxy-phosphorylamino)-hexyl]-phosphoramidic acid diethyl ester is a PEG Linker.

S-acetyl-PEG3-phosphonic acid ethyl ester is a PEG Linker.

m-PEG9-phosphonic acid ethyl ester is a PEG Linker.

7-O-(Amino-PEG4)- paclitaxel is a PEG Linker that may be useful in the development of antibody drug conjugates (ADCs).

Tri(Mal-PEG2-amide)-amine is a branched PEG derivative with three terminal maleimide groups. The maleimide groups will react with a thiol group to form a covalent bond, enabling the connection of biomolecule with a thiol.

3,4-Dibromo-Mal-PEG8-acid is a PEG Linker.

Bis-Mal-PEG11 is a PEG derivative containing a two maleimide groups. The maleimide groups will react with a thiol group to form a covalent bond, enabling the connection of biomolecule with a thiol. The hydrophilic PEG spacer increases solubility in aqueous media.

Bis-Mal-PEG6 is a PEG derivative containing a two maleimide groups. The maleimide groups will react with a thiol group to form a covalent bond, enabling the connection of biomolecule with a thiol. The hydrophilic PEG spacer increases solubility in aqueous media.

Mal-amido-PEG10-acid is a PEG derivative containing a maleimide group and a terminal carboxylic acid. The hydrophilic PEG spacer increases solubility in aqueous media. 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 maleimide group will react with a thiol group to form a covalent bond, enabling the connection of biomolecule with a thiol.

Mal-PEG3-t-butyl ester is a PEG derivative containing a maleimide group and a t-butyl ester group. The hydrophilic PEG spacer increases solubility in aqueous media. The t-butyl protected carboxyl group can be deprotected under acidic conditions. The maleimide group will react with a thiol group to form a covalent bond, enabling the connection of biomolecule with a thiol.

Azido-PEG5-triethoxysilane is a PEG Linker.

Azido-PEG3-triethoxysilane is a PEG Linker.

Azido-PEG4-oxazolidin-2-one is a bifunctional crosslinker containing an azide group and an oxazolidin group. The azide group enables Click Chemistry. The Oxazolidin-2-onegroup is an efficient ligand for the copper-catalyzed N-arylation of pyrrole, imidazole and Iindole. The hydrophilic PEG spacer increases solubility in aqueous media.

N-Fmoc-Azido-tris(ethylenoxy)-L-alanine is a PEG Linker.

N-Fmoc-N'-(azido-PEG4)-L-Lysine- PFP ester is a crosslinker containing an Fmoc protected amine and PFP protected amine, an azide group and a lysine. 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 increases solubility in aqueous media.

N-Fmoc-N'-(azido-PEG4)-L-Lysine is a crosslinker containing one Fmoc protected amine, an azide group, and a lysine. The azide group enables Click Chemistry. The hydrophilic PEG spacer increases solubility in aqueous media.

Azido-PEG4-nitrile is a PEG Linker

Azido-Amido-PEG8-t-butyl esteris a PEG derivative containing an azide group and a t-butyl ester. 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 t-butyl protected carboxyl group can be deprotected under acidic conditions.

Azido-PEG10-t-butyl ester is a PEG Linker.

Azido-PEG2-CH2CO2-NHS is a PEG derivative containing an azide group and an NHS ester. 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 NHS ester can be used to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules.

Azido-PEG10-NHS ester is a PEG Linker. PEG Linkers may be useful in the development of antibody drug conjugates.

Azido-PEG9-NHS ester is a PEG Linker. PEG Linkers may be useful in the development of antibody drug conjugates.

N-azidoacetylmannosamine-tretraacylated (Ac4ManNAz) is a biochemical that may be used for in vivo cell labeling and tracking and, therefore, may be useful for cell-based therapy for monitoring the efficacy of molecule delivery and the fate of recipient cells.

N-(4-pentynoyl)-galactosamine tetraacylated (Ac4 GalNAl) is a biochemical.

Azidobutyric acid NHS ester is a non-PEG Linker.