Aminooxy-PEG1-azide is a PEG derivative containing an aminooxy group and an azide group. 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 azide group can react with alkyne, BCN, DBCO via Click Chemistry to yield a stable triazole linkage.

Aminooxy-PEG8-acid is a PEG derivative containing an aminooxy group and a terminal carboxylic acid. 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 be reacted with primary amine groups in the presence of activators (e.g. EDC, or DCC) to form a stable amide bond.

NH-bis(m-PEG8) is an Amino PEG Linker. PEG Amines contain an amino group which can react with acids, succinimidyl-active esters, or pentafluorophenyl esters for labeling, chemical modification, surface or particle modifications.

NH-bis(PEG3-Boc) is an Amino PEG Linker. PEG Amines contain an amino group which can react with acids, succinimidyl-active esters, or pentafluorophenyl esters for labeling, chemical modification, surface or particle modifications. Therefore, PEG Linkers may be useful in the development of antibody drug conjugates and drug delivery methods.

N-(Boc-PEG4)-NH-PEG4-t-butyl ester is an Amino PEG Linker. PEG Amines contain an amino group which can react with acids, succinimidyl-active esters, or pentafluorophenyl esters for labeling, chemical modification, surface or particle modifications. Therefore, PEG Linkers may be useful in the development of antibody drug conjugates and drug delivery methods.

NH-bis(PEG4-t-butyl ester) is a PEG derivative containing an amino group with two t-butyl esters. The amino groups is reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde) etc. The t-butyl protected carboxyl group can be deprotected under acidic conditions. PEG Linkers may be useful in the development of antibody drug conjugates.

N-(Amino-PEG4)-N-bis(PEG4-t-butyl ester) is a PEG derivative containing an amino group with two t-butyl esters. The amino groups is reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde) etc. The t-butyl protected carboxyl group can be deprotected under acidic conditions. PEG Linkers may be useful in the development of antibody drug conjugates.

N-(Amino-PEG3)-N-bis(PEG3-t-butyl ester) HCl salt is a PEG derivative containing an amino group with two t-butyl esters. The amino groups is reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde) etc. The t-butyl protected carboxyl group can be deprotected under acidic conditions. PEG Linkers may be useful in the development of antibody drug conjugates and drug delivery methods.

Tri(Amino-PEG5-amide)-amine TFA salt is a PEG derivative containing three amino groups. The amino groups are reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde) etc. PEG Linkers may be useful for the development of antibody drug conjugates.

N-(Mal-PEG6)-N-bis(PEG3-amine) TFA salt is a PEG derivative containing a maleimide group with two amino groups. The maleimide group will react with a thiol group to form a covalent bond, enabling the connection of biomolecule with a thiol. The amino groups are reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde) etc. PEG Linkers may be useful in the development of antibody drug conjugates.

N-(Amino-PEG5)-N-bis(PEG4-acid) is a PEG derivative containing an amino group with two terminal carboxylic acids. The amino group is reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde) etc. 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.

N-(Amino-PEG3)-N-bis(PEG3-acid) HCl salt is a PEG derivative containing an amino group with two terminal carboxylic acids. The amino group is reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde) etc. 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.

Gly-PEG3-amine, TFA salt is an Amino PEG Linker. PEG Amines contain an amino group which can react with acids, succinimidyl-active esters, or pentafluorophenyl esters for labeling, chemical modification, surface or particle modifications.

t-boc-N-amido-PEG7-amine is a PEG derivative containing an amino group and Boc-protected amino group. The amino group is reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde) etc. The Boc group can be deprotected under mild acidic conditions to form the free amine. PEG Linkers may be useful in the development of antibody drug conjugates.

Amino-PEG2-t-Boc-hydrazide is a PEG derivative containing an amino group and a Boc-protected hydrazide. The amino group is reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde) etc. The Boc can be deprotected under mild acidic conditions to form a reactive hydrazide, which can then be coupled with various carbonyl groups. PEG Linkers may be useful in the development of antibody drug conjugates.

N-(Propargyl-PEG4-carbonyl)-N-bis(PEG1-methyl ester) is a branched alkyne PEG Linker. PEG Linkers may be useful in the development of antibody drug conjugates and drug delivery methods.

N-(Propargyl-PEG2)-N-Boc-PEG3-t-butyl ester is a branched alkyne PEG Linker. PEG Linkers may be useful in the development of antibody drug conjugates and drug delivery methods.

N-(t-butyl ester-PEG2)-N-bis(PEG2-propargyl) is a branched alkyne PEG Linker. PEG Linkers may be useful in the development of antibody drug conjugates and drug delivery methods.

N-(t-Boc-Aminooxy-PEG2)-N-bis(PEG3-propargyl) is a branched alkyne PEG Linker. PEG Linkers may be useful in the development of antibody drug conjugates and drug delivery methods.

N-(Aminooxy-PEG2)-N-bis(PEG3-propargyl) is a branched alkyne PEG Linker. PEG Linkers may be useful in the development of antibody drug conjugates and drug delivery methods.

N-(Boc-PEG1)-N-bis(PEG2-propargyl) is a branched alkyne PEG Linker. PEG Linkers may be useful in the development of antibody drug conjugates and drug delivery methods.

N-Boc-N-bis(PEG2-propargyl) is a branched PEG Linker. PEG Linkers may be useful in the development of antibody drug conjugates and drug delivery methods.

NH-bis(PEG2-propargyl) is a branched PEG Linker. PEG Linkers may be useful in the development of antibody drug conjugates and drug delivery methods.

N-(Amino-PEG1)-N-bis(PEG2-propargyl) HCl salt is a PEG derivative containing an amino group with two propargyl groups. The amino group is reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde) etc. The propargyl groups can be reacted with azide-bearing compounds or biomolecules via copper catalyzed azide-alkyne Click Chemistry to yield a stable triazole linkage. PEG Linkers may be useful in the development of antibody drug conjugates.

N-(Propargyl-PEG4)-N-bis(PEG4-acid) HCl salt is a branched alkyne PEG Linker. PEG Linkers may be useful in the development of antibody drug conjugates and drug delivery methods.

N-(Propargyl-PEG2)-N-bis(PEG1-alcohol) is a branched alkyne PEG Linker. The alcohol groups can be replaced with other groups via addition reactions. PEG Linkers may be useful in the development of antibody drug conjugates and drug delivery methods.

N-(Acid-PEG2)-N-bis(PEG2-propargyl) is a branched alkyne PEG Linker. PEG Linkers may be useful in the development of antibody drug conjugates and drug delivery methods.

Hydroxy-Amino-bis(PEG2-propargyl) is a symmetrical branched alkyne PEG Linker. PEG Linkers may be useful in the development of antibody drug conjugates and drug delivery methods.

Boc-Gly-PEG3-endo-BCN is a PEG derivative. PEG Linkers and PEG derivatives may be useful in the development of antibody drug conjugates and drug delivery methods.

t-Boc-aminooxy-PEG6-propargyl is a PEG derivative containing a propargyl group and t-Boc-aminooxy 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 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. PEG Linkers my be useful in the development of antibody drug conjugates.