Thalidomide-C3-O-C2-Br deuterium NCCCCCNS(=O)(=O)C1=CC=C(C(=C1)S([O-])(=O)=O)C1=C2C=C3CCC[N+]4=C3C(CCC4)=C2OC2=C3CCCN4CCCC(C=C12)=C34 Purity (HPLC): ≥ 95%

NCCCCCNS(=O)(=O)C1=CC=C(C(=C1)S([O-])(=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

Product Name Pomalidomide-5'-C4-amine HCl Synonyms CAS Number n/a Related CAS 1957236-35-9 (free base) Molecular Formula C17H21ClN4O4 Molecular Weight 380

Product Name [4-(methoxy-d3)phenyl]methanol Synonyms [4-(²H3)methoxyphenyl]methanol CAS Number 14629-71-1 Related CAS Molecular Formula C8H10O2 Molecular Weight 141

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

223 SMILES FC1=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

Thalidomide-C3-O-C2-Br deuterium NCCCCCNS(=O)(=O)C1=CC=C(C(=C1)S([O-])(=O)=O)C1=C2C=C3CCC[N+]4=C3C(CCC4)=C2OC2=C3CCCN4CCCC(C=C12)=C34 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 Thalidomide C3 O C2 Br Synonyms Thalidomide 4' C3 O C2 Br CAS Number n a Related CAS Molecular Formula C18H19BrN2O5 Molecular Weight 423. 263 SMILES BrCCOCCCC1=C2C(=O)N(C3CCC(=O)NC3=O)C(=O)C2=CC=C1 Purity (HPLC) >= 95%