Thermo Scientific™ EZ-Link™ Maleimide-PEG2-Biotin

Biotinylate reduced cysteines with this short, maleimide-activated, sulfhydryl-reactive biotinylation reagent containing a 2-unit PEG spacer arm to enhance water solubility.

Brand: Thermo Scientific™

Manufacturer Part Number: 21902


UNSPSC: 12352200

Code: A0

Additional Details:
Additional Details: Weight: 0.80000kg

Product Code. 11891255

Quantity Price
1 £185.00 / Pack of 8
EU Stock 4
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Description and Specification


Chemical Reactivity Sulfhydryl
Cleavable No
Description EZ-Link Maleimide-PEG2-Biotin, No-Weigh Format
Formulation Maleimide-activated biotin with diethyleneglycol spacer
Molecular Weight 525.62
Membrane Permeable No
PEGylated Yes
Spacer Arm Length 29.1
Quantity 8 x 2mg
Sufficient For 8 uses to label a total of 203mg of IgG using typical conditions
Water Soluble Yes


  • Water-soluble; contains polyethylene glycol (PEG) spacer arm
  • Reacts with sulfhydryl (-SH) groups at acidic to neutral pH
  • Transfers hydrophilic PEG spacer arm to final conjugate
  • Forms a thioether bond