Thalidomide-O-amido-C4-NH2 TFA (Standard) is the analytical standard of Thalidomide-O-amido-C4-NH2 TFA (HY-103613). This product is intended for research and analytical applications. Thalidomide-O-amido-C4-NH2 TFA (Cereblon Ligand-Linker Conjugates 6 TFA) is a synthesized E3 ligase ligand-linker conjugate that incorporates the Thalidomide based cereblon ligand and a linker used in PROTAC technology.