(S,R,S)-AHPC-acetamido-O-PEG6-propargyl building block 78 SMILES CC1=C(SC=N1)C1=CC=C(CNC(=O)[C@@H]2C[C@@H](O)CN2C(=O)[C@@H](NC(=O)COCCOCCOCCN=[N+]=[N-])C(C)(C)C)C=C1 Purity (HPLC)

78 SMILES CC1=C(SC=N1)C1=CC=C(CNC(=O)[C@@H]2C[C@@H](O)CN2C(=O)[C@@H](NC(=O)COCCOCCOCCN=[N+]=[N-])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

Product Name Lenalidomide-PEG5-propargyl Synonyms Lenalidomide-4'-PEG5-propargyl CAS Number n/a Related CAS Molecular Formula C26H35N3O8 Molecular Weight 517

495 SMILES: NCCCCC(NC(=O)C1=CC=C2C(=C1)C(=O)OC21C2=CC=C(O)C=C2OC2=C1C=CC(O)=C2)C(O)=O Purity (HPLC): ≥ 95% Shipping Conditions: room temperature Storage Conditions: Refrigerated Regulatory Statement: For Research Use Only

Product Name Pomalidomide-C4-OH Synonyms Pomalidomide-4'-C4-OH CAS Number 2368940-93-4 Related CAS Molecular Formula C17H19N3O5 Molecular Weight 345

S)-AHPC-acetamido-O-PEG4-propargyl Synonyms CAS Number 2098799-82-5 Related CAS Molecular Formula C35H50N4O9S Molecular Weight 702

(S,R,S)-AHPC-acetamido-O-PEG6-propargyl building block 78 SMILES CC1=C(SC=N1)C1=CC=C(CNC(=O)[C@@H]2C[C@@H](O)CN2C(=O)[C@@H](NC(=O)COCCOCCOCCN=[N+]=[N-])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 PEG6 propargyl Synonyms CAS Number n a Related CAS Molecular Formula C39H59ClN4O11S Molecular Weight 827. 43 SMILES Cl.