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: 21313

UNSPSC: 41115824

Code: PN

Additional Details:
Additional Details: CAS Number: 2374-03-0 Weight: 0.80000kg

Product Code. 11811195

Quantity Price
1 £ 716.0 / 500mg
Estimated Shipment date
from Supplier 09-05-2017
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Description and Specification


Formulation NHS ester of biotin with a 12-unit ethyleneglycol spacer
Cleavable No
Molecular Weight 941.09
Sufficient For Approx. 250 uses to label a total of 3542mg of IgG using typical conditions
Spacer Arm Length 56
Membrane Permeable No
Description EZ-Link NHS-PEG12-Biotin
Chemical Reactivity Amine
PEGylated Yes
Water Soluble Yes
Quantity 500mg


  • 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