Azide-Dap(m-PEG4)-Val-Cit-PAB(m-PEG4)-Exatecan Size:1mg 87 SMILES: NCCCCCNS(=O)(=O)C1=CC=C(C(=C1)C1=C2C=C3CCC[N+]4=C3C(CCC4)=C2OC2=C3CCCN4CCCC(C=C12)=C34)S([O-])(=O)=O

87 SMILES: NCCCCCNS(=O)(=O)C1=CC=C(C(=C1)C1=C2C=C3CCC[N+]4=C3C(CCC4)=C2OC2=C3CCCN4CCCC(C=C12)=C34)S([O-])(=O)=O

Product Name Lenalidomide-acetamido-O-PEG1-C2-Cl Synonyms Lenalidomide-4'-acetamido-O-PEG1-C2-Cl CAS Number 2089207-03-2 Related CAS Molecular Formula C19H22ClN3O6 Molecular Weight 423

Product Name DOTA-tris(t-Bu)ester-C2-acid Synonyms CAS Number n/a Related CAS Molecular Formula C31H57N5O9 Molecular Weight 643

458 SMILES [N-]=[N+]=NCCOCCOCCOCCOC1=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

56 SMILES OC(=O)CCOCCOCCOCCOCCOCCOC1=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

Azide-Dap(m-PEG4)-Val-Cit-PAB(m-PEG4)-Exatecan Size:1mg 87 SMILES: NCCCCCNS(=O)(=O)C1=CC=C(C(=C1)C1=C2C=C3CCC[N+]4=C3C(CCC4)=C2OC2=C3CCCN4CCCC(C=C12)=C34)S([O-])(=O)=OSOLU KNEX cleavable linker features a Val Cit dipeptide. In this product, a Azide Dap(m PEG4) moiety replaces the conventional maleimidocaproyl (MC) unit to enhance aqueous solubility. The azide functional group is widely utilized in bioconjugation via click chemistry to enable efficient and selective attachment of biomolecules. Additionally, m PEG4 is attached to the commonly used self immolative para aminobenzyl (PAB) moiety to further increase