Lenalidomide-CO-C4-Br Lenalidomide CC1=C(SC=N1)C1=CC=C(CNC(=O)[C@@H]2C[C@@H](O)CN2C(=O)[C@@H](NC(=O)CCCN2CCNCC2)C(C)(C)C)C=C1 Purity (HPLC) >= 95%

CC1=C(SC=N1)C1=CC=C(CNC(=O)[C@@H]2C[C@@H](O)CN2C(=O)[C@@H](NC(=O)CCCN2CCNCC2)C(C)(C)C)C=C1 Purity (HPLC) >= 95% Shipping Conditions Room temperature Storage Conditions Refrigerated Shelf Life 12 months after the date of delivery Regulatory Statement For Research Use Only

8 SMILES ClCCOCC(=O)NC1=C2CN(C3CCC(=O)NC3=O)C(=O)C2=CC=C1 Purity (HPLC) >= 95% Shipping Conditions Room temperature Storage Conditions Refrigerated Shelf Life 12 months after the date of delivery Regulatory Statement For Research Use Only

288 SMILES BrCCCCNC(=O)COC1=C2C(=O)N(C3CCC(=O)NC3=O)C(=O)C2=CC=C1 Purity (HPLC) >= 95% Shipping Conditions Room temperature Storage Conditions Refrigerated Shelf Life 12 months after the date of delivery Regulatory Statement For Research Use Only

612 SMILES: OC(=O)C1=CC=C(C(=C1)C([O-])=O)C1=C2C=C3CCC[N+]4=C3C(CCC4)=C2OC2=C3CCCN4CCCC(C=C12)=C34 Purity (HPLC): ≥ 95% Shipping Conditions: room temperature Storage Conditions: Refrigerated Regulatory Statement: For Research Use Only

Lenalidomide-CO-C4-Br Lenalidomide CC1=C(SC=N1)C1=CC=C(CNC(=O)[C@@H]2C[C@@H](O)CN2C(=O)[C@@H](NC(=O)CCCN2CCNCC2)C(C)(C)C)C=C1 Purity (HPLC) >= 95%Degrader building block for targeted protein degradation. Contains an E3 ligase ligand with a linker and a function group, which can be conjugated to target protein ligands through straightforward chemical reactions. Product Name Lenalidomide CO C4 Br Synonyms Lenalidomide 4' CO C4 Br CAS Number n a Related CAS Molecular Formula C18H20BrN3O4 Molecular Weight 422. 279 SMILES BrCCCCC(=O)NC1=C2CN(C3CCC(=O)NC3=O)C(=O)C2=CC=C1 Purity (HPLC) >= 95% Shipping