Pomalidomide-PEG4-C2-acid deuterium-labeled-alcohol 403 SMILES O=C1N(C2CCC(=O)NC2=O)C(=O)C2=C(NCCOCCOCC#C)C=CC=C12 Purity (HPLC)

403 SMILES O=C1N(C2CCC(=O)NC2=O)C(=O)C2=C(NCCOCCOCC#C)C=CC=C12 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

NCCOCCOCCNC(=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

57 SMILES: CN(C)C1=CC=C2C(OC3=CC(C=CC3=C2C2=CC=C(C=C2C([O-])=O)C(=O)NCCCN=[N]#N)=[N+](C)C)=C1 Purity (HPLC): ≥ 95% Shipping Conditions: room temperature Storage Conditions: Refrigerated Regulatory Statement: For Research Use Only

44 SMILES OCCOCCOCCOCC#CC1=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

82 SMILES Cl

Pomalidomide-PEG4-C2-acid deuterium-labeled-alcohol 403 SMILES O=C1N(C2CCC(=O)NC2=O)C(=O)C2=C(NCCOCCOCC#C)C=CC=C12 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 Pomalidomide PEG4 C2 acid Synonyms Pomalidomide 4' PEG4 C2 acid CAS Number 2138440 81 8 Related CAS Molecular Formula C24H31N3O10 Molecular Weight 521. 523 SMILES OC(=O)CCOCCOCCOCCOCCNC1=C2C(=O)N(C3CCC(=O)NC3=O)C(=O)C2=CC=C1