DM1-PEG4-DBCO

• CAT Number: I045890
• Molecular Formula: C63H80ClN5O16
• Molecular Weight: 1198.79
• Purity: ≥95%
• Synonyms: [(2R,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[4-[2-[2-[2-[2-[[4-(2-azatricyclo[10.4.0.04,9]hexadeca-1(16),4,6,8,12,14-hexaen-10-yn-2-yl)-4-oxobutanoyl]amino]ethoxy]ethoxy]ethoxy]ethoxy]butanoyl-methylamino]propanoate
• InChI: InChI=1S/C63H80ClN5O16/c1-41-15-13-20-52(78-8)63(76)39-51(83-61(75)66-63)42(2)59-62(4,85-59)53(38-57(73)68(6)49-36-44(35-41)37-50(77-7)58(49)64)84-60(74)43(3)67(5)55(71)21-14-27-79-29-31-81-33-34-82-32-30-80-28-26-65-54(70)24-25-56(72)69-40-47-18-10-9-16-45(47)22-23-46-17-11-12-19-48(46)69/h9-13,15-20,36-37,42-43,51-53,59,76H,14,21,24-35,38-40H2,1-8H3,(H,65,70)(H,66,75)/b20-13+,41-15+/t42-,43+,51?,52-,53+,59?,62+,63+/m1/s1
• InChIKey: KNGFBSMTZQRQKS-UXUCKKCRSA-N
• SMILES: C[C@@H]1C2C[C@]([C@@H](/C=C/C=C(/CC3=CC(=C(C(=C3)OC)Cl)N(C(=O)C[C@@H]([C@]4(C1O4)C)OC(=O)[C@H](C)N(C)C(=O)CCCOCCOCCOCCOCCNC(=O)CCC(=O)N5CC6=CC=CC=C6C#CC7=CC=CC=C75)C)\C)OC)(NC(=O)O2)O

DM1-PEG4-DBCO（Cat No.:I045890）is a chemically engineered antibody–drug conjugate (ADC) linker–payload component. It combines DM1, a maytansinoid microtubule inhibitor, with a PEG4 spacer for improved solubility and stability, and a DBCO (dibenzocyclooctyne) group that enables copper-free click chemistry conjugation. This design allows efficient attachment to azide-modified antibodies or biomolecules, facilitating site-specific ADC assembly. Once delivered to target cells, DM1 disrupts microtubule dynamics, inducing apoptosis. DM1-PEG4-DBCO is widely used in cancer research and ADC development, offering precision in studying targeted cytotoxic drug delivery systems.