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Thermo Scientific™ Pierce™ DSP Crosslinker

Crosslink amines to amines with dithiobis succinimidyl propionate, composed of NHS-ester groups and disulfide-containing, 12.0A spacer arm and cleavable with reducing agents.

Manufacturer: thermo scientific™  PI22585

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Catalog No. PI22585

  • / Pack

Description & Specifications


Spacer Arm Length 12Å
Membrane Permeable Yes
Molecular Weight 404.42
PEGylated No
Quantity 1g
Sufficient For 2473mL of typical 1X (1mM) reaction solution, or approx. 500 uses at 2mg reagent per use
Chemical Reactivity Amine-to-Amine
Water Soluble No
Cleavable Yes
Description Pierce DSP (Lomant's Reagent)
Formulation Dithiobis(succinimidylpropionate); powder solid

Thermo Scientific™ Pierce DSP Crosslinker (Lomant's Reagent) is an amine-reactive crosslinker with NHS-ester reactive ends and a cleavable disulfide bond in its spacer arm.


  • Cleavable by reducing agents
  • Membrane-permeable
  • Acylate in aqueous or organic media within two minutes at room temperature
  • Four- to five-hour half-life of ester at pH 7.0
  • Reactive groups: NHS ester (homobifunctional)
  • Reactive toward: amino groups