Azide-Dap(m-PEG4)-Val-Cit-PAB 5' 328 SMILES OCCCNC1=CC=C2C(=O)N(C3CCC(=O)NC3=O)C(=O)C2=C1 Purity (HPLC)

328 SMILES OCCCNC1=CC=C2C(=O)N(C3CCC(=O)NC3=O)C(=O)C2=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 Mal-Acetyl-Dap(m-PEG4)-Val-Cit-PAB(m-PEG4)-PNP Synonyms CAS Number Related CAS Molecular Formula C54H79N11O21 Molecular Weight 1218

NCCOCCOCCOCCOCCOCCOC1=CC=C2C(=O)N(C3CCC(=O)NC3=O)C(=O)C2=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

6 SMILES [H][C@]12CS[C@@H](CCCCC(=O)NCCOCCOCCOCCOCCC(O)=O)[C@@]1([H])NC(=O)N2 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

382 SMILES O

Azide-Dap(m-PEG4)-Val-Cit-PAB 5' 328 SMILES OCCCNC1=CC=C2C(=O)N(C3CCC(=O)NC3=O)C(=O)C2=C1 Purity (HPLC)SOLU 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. Derived from established ADC linker architectures, SOLU KNEX ADC linkers integrate solubilizing moietiessuch as PEG, amine