ProductDescription
8-Azido-3,6-dioxaoctanoicacidtert-butylester(Azide-PEG2-COOtBu,N3-PEG2-COOtBu)isamonodisperseheterofunctionalPEGwithazidegroupandtert-butylesterprotectedcarboxylicgroup.Theprotectedcarboxyl(COOH)preventsselfcouplingorpolymerizationunderstandardacid/amineoracid/hydroxylcouplingconditions.AzidecanbeusedformoleculeconjugationbyClickchemistry.Theprotectedacidcanberegeneratedbyacidicorbasichydrolysis.
HeterobifunctionalPEGreagentsfromNSParegenerallyemployedascrosslinkingagentsorasspacersbetweentwodifferentchemicalentities.ThePEGmoietyintheheterofunctionalPEGderivativesprovideswatersolubility,biocompatibility,andflexibility.Applicationsareespeciallygearedtowardsthedevelopmentofantibodydrugconjugates.

