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: 21901BID

50MG Maleimide-PEG-2-Biotin(Maleimide-PEO-2-Biotin)

UNSPSC: 12352200

Code: PN

Additional Details:
Additional Details: Weight: 2.72160kg

Product Code. 10519873

Quantity Price
1 £ 264.0 / 50mg
EU Stock 8
Add to basket

Description and Specification


Formulation Maleimide-activated biotin with diethyleneglycol spacer
Cleavable No
Molecular Weight 525.62
Sufficient For Approx. 25 uses to label a total of 634mg of IgG using typical conditions
Spacer Arm Length 29.1
Description EZ-Link Maleimide-PEG2-Biotin
Membrane Permeable No
PEGylated Yes
Chemical Reactivity Sulfhydryl
Water Soluble Yes
Quantity 50mg


  • 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