Thermo Scientific™ EZ-Link™ Sulfo-NHS-SS-Biotin and Labeling Kits

Biotinylate protein amines with this cleavable, mid-length (24.3A), water-soluble, NHS-ester biotinylation reagent containing a cleavable disulfide bond in the spacer arm.

Brand: Thermo Scientific™

Manufacturer Part Number: 21445

UNSPSC: 41115824

Code: PN

Additional Details:
Additional Details: Weight: 3.17510kg

Product Code. 10157723

Quantity Price
1 £ 265.0 / 1 set
EU Stock 3
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Description and Specification


Storage Requirements -20°C protected from moisture
Formulation Multi-component kit with Sulfo-NHS-SS-Biotin
Kit Contents Avidin, 10mg
Cleavable Yes
Molecular Weight 606.69
Sufficient For 10 labeling reactions, each with 1 to 10mg of antibody
Spacer Arm Length 24.3
Description EZ-Link Sulfo-NHS-SS-Biotinylation Kit
Membrane Permeable No
Chemical Reactivity Amine
PEGylated No
Quantity 10 rxn kit
Water Soluble Yes


  • Cleavable analog of Sulfo-NHS-LC-Biotin
  • Can remove biotin label by cleaving spacer disulfide bond with reducing agents, such as DTT
  • Ideal for affinity purification experiments that require efficient elution from immobilized avidin supports (cleaving disulfide bond releases proteins)
  • Long spacer arm reduces steric hindrance for binding interactions