m-PEG-mal (MW 30000)

• CAT Number: I045919
• Molecular Weight: 30000(Average)
• Purity: ≥95%

m-PEG-Mal (MW 30000)（Cat No.:I045919）is a methoxy-terminated polyethylene glycol derivative functionalized with a maleimide group for thiol-specific conjugation. The maleimide moiety reacts efficiently with sulfhydryl groups on peptides, proteins, or surfaces, forming stable thioether linkages. With a molecular weight of 30,000, the long PEG chain provides exceptional water solubility, steric stabilization, and biocompatibility, while minimizing aggregation and nonspecific interactions. Its extended hydrodynamic size enhances circulation time and reduces clearance, making it particularly valuable in drug delivery, nanoparticle modification, biomaterials engineering, and bioconjugation applications where high-molecular-weight PEG offers optimal stealth performance.