Thermo Scientific™ EZ-Link™ NHS-PEG12-Biotin

Biotinylate protein amines and maximize solubility of proteins with this very long (56.0A) NHS-ester biotinylation reagent containing a pegylated, water-soluble spacer arm.

Brand: Thermo Scientific™

Manufacturer Part Number: 21312

UNSPSC: 41115824

Code: PN

Additional Details:
Additional Details: Weight: 1.81440kg

Product Code. 11801195

Quantity Price
1 £ 186.0 / 25mg
EU Stock 13
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Description and Specification


Formulation NHS ester of biotin with a 12-unit ethyleneglycol spacer
Cleavable No
Sufficient For Approx. 12 uses to label a total of 177mg of IgG using typical conditions
Molecular Weight 941.09
Spacer Arm Length 56
Description EZ-Link NHS-PEG12-Biotin
Membrane Permeable No
PEGylated Yes
Chemical Reactivity Amine
Quantity 25mg
Water Soluble Yes


  • Water-soluble polyethylene glycol (PEG) spacer arm increases solubility of labeled protein
  • Excellent purity, molecular weight uniformity and amine-reactivity
  • Long spacer arm reduces steric hindrance when binding to avidin molecules