Thermo Scientific™ Pierce™ Methyl-PEG-Amine Compounds

MA(PEG)n: methyl- and amine-capped polyethylene glycol compounds containing 4 to 24 PEG units; use for surface-modification and molecule-pegylation applications.

Brand: Thermo Scientific™

Manufacturer Part Number: 26114

UNSPSC: 12161502

Code: PN

Additional Details:
Additional Details: CAS Number: 175205-42-2 Weight: 0.80000kg

Product Code. 11811415

Quantity Price
1 £ 230.0 / 100mg
Estimated Shipment date
from Supplier 08-05-2017
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Description and Specification


Formulation 12-unit ethyleneglycol functionalized with methyl and amine ends; pale liquid or solid
Cleavable No
Molecular Weight 559.69
Sufficient For 7mL of typical 1X (25mM) reaction solution
Spacer Arm Length 43.9Å
Description Pierce MA(PEG)12
Chemical Reactivity Carboxyl (via EDC)
PEGylated Yes
Capping Group Methyl
Quantity 100mg

MA(PEG)n compounds have the form Methyl-PEGn-Amine and are ideal for derivatizing surfaces and molecules with discrete numbers (n = 4, 8, 12, 24) of ethylene glycol groups. Use any amine-reactive chemistry (e.g., EDC or NHS ester) to PEGylate surfaces, proteins, or other molecules with a precise number of hydrophilic, nonimmunogenic PEG units.


  • Pure compounds of specific size ensure complete control of PEGylation
  • Straight-chain compounds with simple terminal primary amine
  • Adaptable to a variety of modification procedures

Recommended for:

  • PEGylate carboxylate or amine surfaces Add inert mass to proteins, immunogens, drug compounds and probes Improve solubility (decrease aggregation) of proteins or peptides without affecting function Protect proteins from proteolysis