Lipids & Polymers

m-PEG12-NHS ester (Legacy Tebubio ref. 282T20901). M-PEG12-NHS ester is a PEG derivative containing an NHS ester. The hydrophilic PEG spacer increases solubility in aqueous media. The NHS ester can be used to label amine-modified oligonucleotides, the primary amines (-NH2) of proteins, and other amine-containing molecules.

m-PEG12-Mal (Legacy Tebubio ref. 282T20903). M-PEG12-Mal is a PEG derivative containing a maleimide group. The hydrophilic PEG spacer increases solubility in aqueous media. The maleimide group could form a covalent bond with a thiol group , enabling the further connection of biomolecule with a thiol.

m-PEG11-Tos (Legacy Tebubio ref. 282T20904). M-PEG11-Tos is a PEG derivative containing a tosyl group. The hydrophilic PEG spacer increases solubility in aqueous media. For nucleophilic substitution reactions, the tosyl group is a good leaving group.

Azido-PEG2-t-butyl ester (Legacy Tebubio ref. 282T20915). Azido-PEG2-t-butyl ester is a PEG derivative containing a t-butyl ester and an azide group. The hydrophilic PEG spacer increases solubility in aqueous media. Under acidic conditions, the t-butyl protected carboxyl group can be deprotected.