Thalidomide-NH-(CH2)2-NH2 TFA is an alkyl-modified Thalidomide (HY-14658) that acts as a Cereblon ligand to recruit CRBN proteins. Thalidomide-NH-(CH2)2-NH2 TFA is a key intermediate in the synthesis of CRBN-based PROTAC molecules designed to synthesize small PROTAC molecules targeting SHP2 protein.