Thermo Scientific™ Sulfo-SMPB (sulfosuccinimidyl 4-(N-maleimidophenyl)butyrate)

Thermo Scientific™ Sulfo-SMPB (sulfosuccinimidyl 4-(N-maleimidophenyl)butyrate)

Thermo Scientific Pierce Sulfo-SMPB is a water-soluble amine-to-sulfhydryl crosslinker that contains NHS-ester and maleimide reactive groups at opposite ends of a medium-length aromatic spacer arm (11.6 angstroms).

Features

• Reactive groups: sulfo-NHS ester and maleimide
• Reactive towards: amino and sulfhydryl groups
• Extended chain length limits steric hindrance
• Non-cleavable
• Water-soluble (compare to SMPB)
• Membrane impermeable, allowing for cell surface labeling