Mal-Lys(m-PEG4)-Val-Ala-PAB(m-PEG4)-MMAE acid 821 SMILES OC(=O)CN1CCN(CC(O)=O)CCN(CC(=O)NCCOCCOCCOCCOCCOCCOCCN=[N+]=[N-])CCN(CC(O)=O)CC1 Purity (HPLC)

821 SMILES OC(=O)CN1CCN(CC(O)=O)CCN(CC(=O)NCCOCCOCCOCCOCCOCCOCCN=[N+]=[N-])CCN(CC(O)=O)CC1 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 DBCO-Dap(m-PEG4)-Val-Cit-PAB-PNP Synonyms CAS Number Related CAS Molecular Formula C57H70N10O15 Molecular Weight 1135

722 SMILES: [O-]C(=O)C1=CC=C(C=C1C1=C2C=C3CCC[N+]4=C3C(CCC4)=C2OC2=C3CCCN4CCCC(C=C12)=C34)C(=O)NCCCN=[N]#N Purity (HPLC): ≥ 95% Shipping Conditions: room temperature Storage Conditions: Refrigerated Regulatory Statement: For Research Use Only

Product Name Fmoc-Val-Ala-PAB(m-PEG4)-PNP Synonyms CAS Number Related CAS Molecular Formula C47H55N5O14 Molecular Weight 913

Mal-Lys(m-PEG4)-Val-Ala-PAB(m-PEG4)-MMAE acid 821 SMILES OC(=O)CN1CCN(CC(O)=O)CCN(CC(=O)NCCOCCOCCOCCOCCOCCOCCN=[N+]=[N-])CCN(CC(O)=O)CC1 Purity (HPLC)SOLU KNEX cleavable linker features a Val Ala 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 monomethyl auristatin E (MMAE), a highly potent antimitotic agent that inhibits tubulin polymerization, leading to