Mal-Propionyl-Dap(m-PEG4)-Val-Ala-PAB(m-PEG4)-MMAE Size:1mg 33 SMILES OCCCC1=C2CN(C3CCC(=O)NC3=O)C(=O)C2=CC=C1 Purity (HPLC)

33 SMILES OCCCC1=C2CN(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

11 (TFA Salt) SMILES: NCCNC(=O)C1=CC=C2C(=C1)C(=O)OC21C2=CC=C(O)C=C2OC2=C1C=CC(O)=C2

524 Purity (HPLC) >= 95% Solubility DMSO

DMF Shipping Conditions Room Temperature Storage Conditions Store at -20°C and protected from light Shelf Life 12 months after the date of delivery Regulatory Statement For Research Use Only

though they’re less bright than xanthene dyes like fluorescein

Mal-Propionyl-Dap(m-PEG4)-Val-Ala-PAB(m-PEG4)-MMAE Size:1mg 33 SMILES OCCCC1=C2CN(C3CCC(=O)NC3=O)C(=O)C2=CC=C1 Purity (HPLC)SOLU KNEX cleavable linker features a Val Ala dipeptide. In this product, a Mal Propionyl Dap(m PEG4) moiety replaces the conventional maleimidocaproyl (MC) unit to enhance aqueous solubility. The Mal Propionyl group may also improve retro Michael addition stability during antibody conjugation. Additionally, m PEG4 is attached to the commonly used self immolative para aminobenzyl (PAB) moiety to further increase aqueous solubility. The payload is