– Tri-GalNAc(OAc)3 is a triantenerrary N-acetylgalactosamine (tri-GalNAc) with an amino group, which is useful precursor for synthesis of GalNAc-LYTAC that engage the asialoglycoprotein receptor for targeted protein degradation. Tri-GalNAc(OAc)3 was first reported in Nat Chem Biol. 2021 Sep;17(9):937-946 (compound ). This product has no formal name at the moment.