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: 21902BID

UNSPSC: 12352200

Code: A0

Additional Details:
Additional Details: Weight: 2.72160kg

Product Code. 11891255

Quantity Price
1 £ 195.0 / Pack of 8
EU Stock 2
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Description and Specification


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