DBCO-Lys(m-PEG4)-Gly-Gly-Phe-Gly-PAB(m-PEG8)-PNP Size:50mg 546 SMILES OCCOCCOCCOCCOCCOCC#CC1=C2C(=O)N(C3CCC(=O)NC3=O)C(=O)C2=CC=C1 Purity (HPLC)

546 SMILES OCCOCCOCCOCCOCCOCC#CC1=C2C(=O)N(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

Product Name DOTA-tris(t-Bu)ester-C2-propanamido-maleimide Synonyms CAS Number Related CAS Molecular Formula C37H63N7O10 Molecular Weight 765

Product Name tert-butyl 2-{4-[(piperidin-4-yl)methyl]piperazin-1-yl}acetate Synonyms CAS Number n/a Related CAS Molecular Formula C16H31N3O2 Molecular Weight 297

while the para-aminobenzyl (PAB) spacer supports self-immolative release of the attached drug

486 SMILES: NCCCCCNC(=O)C1=CC=C2C(=C1)C(=O)OC21C2=CC=C(O)C=C2OC2=C1C=CC(O)=C2 Purity (HPLC): ≥ 95% Shipping Conditions: room temperature Storage Conditions: Refrigerated Regulatory Statement: For Research Use Only

DBCO-Lys(m-PEG4)-Gly-Gly-Phe-Gly-PAB(m-PEG8)-PNP Size:50mg 546 SMILES OCCOCCOCCOCCOCCOCC#CC1=C2C(=O)N(C3CCC(=O)NC3=O)C(=O)C2=CC=C1 Purity (HPLC)SOLU KNEX cleavable linker features a Gly Gly Phe Gly (GGFG) peptide. In this product, a DBCO Lys(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 PEG8 is attached to the commonly used self immolative para aminobenzyl (PAB) moiety to