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

Biotinylate protein amines (e.g., lysines) with this very popular mid-length (22.4A), water-soluble, NHS-ester biotinylation reagent for antibody or cell-surface labeling.

Brand: Thermo Scientific™

Manufacturer Part Number: 21935

UNSPSC: 41115824

Code: PN

Additional Details:
Additional Details: Weight: 3.17510kg

Product Code. 10045833

Quantity Price
1 £ 276.0 / 1 set
EU Stock 8
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Description and Specification


Formulation Multi-component kit with Sulfo-NHS-LC-Biotin
Storage Requirements -20°C with desiccant
Kit Contents EZ-Link Sulfo-NHS-LC-Biotin, 8 x 1mg
Cleavable No
Molecular Weight 556.59
Sufficient For 8 labeling reactions, each with 0.05-0.2mg of antibody
Spacer Arm Length 22.4
Description EZ-Link Micro Sulfo-NHS-LC-Biotinylation Kit
Membrane Permeable No
Chemical Reactivity Amine
PEGylated No
Quantity 8 rxn kit
Water Soluble Yes


  • Water-soluble analog of NHS-LC-Biotin
  • Reacts with primary amines at pH 7-9 in non-amine-containing buffers such as borate, carbonate or phosphate buffers
  • Negative charge of -SO3 group keeps biotinylation localized at the cell surface
  • Creates an amide bond
U.S. Patents 5,892,628 and 5,872,261.


Technical documents