(S,R,S)-AHPC-acetamido-O-PEG4-OH Thalidomide 9 SMILES CC1=C(SC=N1)C1=CC=C(CNC(=O)[C@@H]2C[C@@H](O)CN2C(=O)[C@@H](NC(=O)COCCOCCOCCOCCOCCOCC(O)=O)C(C)(C)C)C=C1 Purity (HPLC)

9 SMILES CC1=C(SC=N1)C1=CC=C(CNC(=O)[C@@H]2C[C@@H](O)CN2C(=O)[C@@H](NC(=O)COCCOCCOCCOCCOCCOCC(O)=O)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

352 SMILES OCCCC#CC1=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

563 SMILES [N-]=[N+]=NCCOCCOCCOCCOCCNC(=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

Product Name Pomalidomide-CO-PEG5-C2-Cl Synonyms Pomalidomide-4'-CO-PEG5-C2-Cl CAS Number n/a Related CAS Molecular Formula C26H34ClN3O10 Molecular Weight 584

OC1=CC2=C(C=C1)C1(OC(=O)C3=CC=C(C=C13)C(=O)NCCOCCOCCOCC#C)C1=CC=C(O)C=C1O2 Purity (HPLC): ≥ 95% Shipping Conditions: room temperature Storage Conditions: Refrigerated Regulatory Statement: For Research Use Only

(S,R,S)-AHPC-acetamido-O-PEG4-OH Thalidomide 9 SMILES CC1=C(SC=N1)C1=CC=C(CNC(=O)[C@@H]2C[C@@H](O)CN2C(=O)[C@@H](NC(=O)COCCOCCOCCOCCOCCOCC(O)=O)C(C)(C)C)C=C1 Purity (HPLC)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 (S,R,S) AHPC acetamido O PEG4 OH Synonyms CAS Number n a Related CAS Molecular Formula C32H48N4O9S Molecular Weight 664. 82 SMILES CC1=C(SC=N1)C1=CC=C(CNC(=O)[C@@H]2C[C@@H](O)CN2C(=O)[C@@H](NC(=O)COCCOCCOCCOCCO)C(C)(C)C)C=C1