DBCO-Dap(m-PEG4)-Val-Cit-PAB(m-PEG4) fluorescein 47 SMILES OC(=O)CCOCCOCCOCCNC1=CC=C2C(=O)N(C3CCC(=O)NC3=O)C(=O)C2=C1 Purity (HPLC)

47 SMILES OC(=O)CCOCCOCCOCCNC1=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

CA-DOTA-tris(t-Bu) can be used to attach DOTA moiety to protein

067 Purity (HPLC) >= 95% Physical Appearance Dark blue Solid Optical Properties Abs/Em Maxima: 651/670 nm Solubility DMSO Shipping Conditions Shipped on gel packs 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

338 SMILES OC(=O)CCCNC1=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

DBCO-Dap(m-PEG4)-Val-Cit-PAB(m-PEG4) fluorescein 47 SMILES OC(=O)CCOCCOCCOCCNC1=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 DBCO Dap(m PEG4) moiety replaces the conventional maleimidocaproyl (MC) unit to enhance aqueous solubility. DBCO is a strained alkyne commonly used in copper free click chemistry, specifically in the strain promoted azide alkyne cycloaddition (SPAAC) reaction. Additionally, m PEG4 is attached to the commonly used self immolative para aminobenzyl (PAB) moiety to further