Thermo Scientific™ Pierce™ Carboxy-PEG-Amine Compounds

CA(PEG)n: pegylated amino acids of the form carboxy-PEG-amine; with 4 to 24 polyethylene glycol units; for surface- and molecule-pegylation applications.

Brand: Thermo Scientific™

Manufacturer Part Number: 26125

1 GR CA(PEG)12

UNSPSC: 12161502

Code: PN

Additional Details:
Additional Details: Weight: 0.00100kg Transport: UN number : 2811 Chem class : 1 Pack group : III

Product Code. 10668684

Quantity Price
1 £830.92 / 1g
Estimated Shipment date
from Supplier 03-11-2016
Add to basket

Description and Specification


Capping Group Carboxyl
Chemical Reactivity NHS esters of EDC-activated carboxylates
Cleavable No
Description Pierce CA(PEG)12
Formulation 12-unit ethyleneglycol functionalized with carboxyl and amine ends; solid
Molecular Weight 617.72
PEGylated Yes
Quantity 1g
Sufficient For 65mL of typical 1X (25mM) reaction solution
Spacer Arm Length 46.8Å

CA(PEG)n is the abbreviation for a set of compounds having polyethylene glycol (PEG) spacers with carboxy (-COOH) and amino (-NH2) termini. The unbranched, hydrophilic, discrete-length molecules have the form Carboxy-PEGn-Amine, where the subscript “n” denotes 4, 8, 12, or 24 ethylene glycol units. The carboxyl and primary amine of each compound provide specific targets for crosslinking and other conjugation methods, making these compounds useful as PEGylation reagents.


  • Fully characterized PEGylation reagents with defined PEG chain lengths; molecules of discrete molecular weight for consistency of performance in protein-modification applications
  • Provided as a series of 4, 8, 12 and 24 ethylene glycol units, enabling modification procedures to be optimized for a specific application while retaining all the benefits associated with protein PEGylation
  • PEG spacer provides unique advantages, including increased stability, reduced tendency toward aggregation and reduced immunogenicity
  • Allows site-specific labeling or crosslinking involving primary amines or carboxyl groups on proteins or surfaces
  • Easy-to-follow instructions increase the likelihood of a successful outcome

Ordering Information:

Alternative names: Amino-dPEG-acid; Amino-PEG-carboxylic acid; Carboxy-PEO-amine

Compatible with:

Methyl-PEG-Amine Compounds, MA(PEG)n; Other Kinds of PEGylation Reagents