Sulpho-SMPB (Sulphosuccinimidyl 4-(4-maleimidophenyl)butyrate), Pierce™

Supplier: Thermo Fisher Scientific
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Avg. Ratings: 0.0 out of 5

Synonyms: Sulpho succinimidyl 4-(ρ-maleimidophenyl) butyrateSulfo SMPBSulphosuccinimidyl 4-(N-maleimidophenyl)butyrate

Pierce™
PIER22317EA 305 GBP
PIER22317
Sulpho-SMPB (Sulphosuccinimidyl 4-(4-maleimidophenyl)butyrate), Pierce™
Sulpho-SMPB (Sulphosuccinimidyl 4-(4-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).


  • 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


Caution: For Research Use Only. Not for use in diagnostic procedures.

Formula: C₁₈H₁₅N₂O₉S·Na
MW: 458.374 g/mol
Storage Temperature: Freezer
MDL Number: MFCD00054981
CAS Number: 92921-26-1

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