Azide-Lys(m-PEG4)-Gly-Gly-Phe-Gly-PAB(m-PEG8)-MMAE payload Product Name CP-SS-SulfoCy5 Synonyms SNAP2-SS-SulfoCynine

Product Name CP-SS-SulfoCy5 Synonyms SNAP2-SS-SulfoCynine 5 CAS Number Related CAS Molecular Formula C50H60ClN7O8S4 Molecular Weight 1050

Product Name 3-{4-[(tert-butoxy)carbonyl]piperazin-1-yl}propanoic acid Synonyms CAS Number 242459-97-8 Related CAS Molecular Formula C12H22N2O4 Molecular Weight 258

986 SMILES CC(C)(C)OC(=O)CN1CCN(CC(=O)NCCOCCOCCOCCN=[N+]=[N-])CCN(CC(=O)OC(C)(C)C)CCN(CC(=O)OC(C)(C)C)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

588 Purity (HPLC) >= 95% Solubility DMSO

Azide-Lys(m-PEG4)-Gly-Gly-Phe-Gly-PAB(m-PEG8)-MMAE payload Product Name CP-SS-SulfoCy5 Synonyms SNAP2-SS-SulfoCynineSOLU KNEX cleavable linker features a Gly Gly Phe Gly (GGFG) peptide. In this product, a Azide Lys(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 PEG8 is attached to the commonly used self immolative para aminobenzyl (PAB) moiety to further