Mal-Lys(m-PEG4)-Val-Cit-PAB(m-PEG4)-Exatecan Size:25mg 404 SMILES CN1C(=O)C(C)=C2N(C(=O)N(C3CC3)C(=O)C2=C1NC1=C(F)C=C(I)C=C1)C1=CC(NC(C)=O)=CC=C1 Purity (HPLC)

404 SMILES CN1C(=O)C(C)=C2N(C(=O)N(C3CC3)C(=O)C2=C1NC1=C(F)C=C(I)C=C1)C1=CC(NC(C)=O)=CC=C1 Purity (HPLC) >= 95% Physical Appearance White solid Solubility DMSO

392 Purity (HPLC) >= 95% Solubility DMSO

Proteolysis targeting chimera (PROTAC) building block

S)-AHPC-CO-PEG6-OH Synonyms CAS Number n/a Related CAS Molecular Formula C35H54N4O10S Molecular Weight 722

473 SMILES O=C1N(CC2=C(NCCOCCOCCOCC#C)C=CC=C12)C1CCC(=O)NC1=O 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

Mal-Lys(m-PEG4)-Val-Cit-PAB(m-PEG4)-Exatecan Size:25mg 404 SMILES CN1C(=O)C(C)=C2N(C(=O)N(C3CC3)C(=O)C2=C1NC1=C(F)C=C(I)C=C1)C1=CC(NC(C)=O)=CC=C1 Purity (HPLC)SOLU KNEX cleavable linker features a Val Cit dipeptide. In this product, a Mal Lys(m PEG4) moiety replaces the conventional maleimidocaproyl (MC) unit to enhance aqueous solubility. Additionally, m PEG4 is attached to the commonly used self immolative para aminobenzyl (PAB) moiety to further increase aqueous solubility. The payload is Exatecan, a highly potent topoisomerase I inhibitor derived from camptothecin, which induces DNA damage by