PE131020: β-GalNAc-PEG3-DBCO Pack Size:5 mg 38 / A peracetylated β-D-N-acetylgalactosamine

38 / A peracetylated β-D-N-acetylgalactosamine (GalNAcβ) ligand equipped with an azide-functionalized linker through a short ethyl spacer

2-(Acetylthio)ethyl β-D-glucopyranoside

9 / An Fmoc-protected L-threonine building block carrying a β-D-cellobiose (Glcβ1-4Glc) disaccharide

2-Dihydrospirorenone-d4

5 / A β-D-lactose ligand equipped with a terminal alkyne through a hydrophilic PEG3 spacer

PE131020: β-GalNAc-PEG3-DBCO Pack Size:5 mg 38 / A peracetylated β-D-N-acetylgalactosamineC33H41N3O10 639. 69 A D N acetylgalactosamine (GalNAc) ligand equipped with a dibenzocyclooctyne (DBCO) handle through a hydrophilic PEG3 spacer. The DBCO group reacts with azides via copper free strain promoted azide alkyne cycloaddition (SPAAC), forming stable 1,2,3 triazole linkages without a copper catalyst. This compound enables the construction of hepatocyte targeted therapeutics and research tools that exploit the asialoglycoprotein receptor