Poly(ethylene glycol) 2-aminoethyl ether acetic acid
Poly(ethylene glycol) 2-aminoethyl ether acetic acid (CAS: 139729-28-5) is a heterobifunctional PEG derivative featuring both an amine and a carboxylic acid terminus. This molecule, with a typical average molecular weight of 10,000 g/mol, serves as a versatile crosslinker and surface modification agent. It is widely employed in materials science and polymer science for bioconjugation, drug delivery systems, and the development of advanced functional materials.
- IUPAC
- Amine-PEG-carboxylic acid,Amino-PEG acetic acid,AminoPEG carboxylic acid,Aminopolyoxyethylene acetic acid
- Synonyms
- Amine-PEG-carboxylic acidAmino-PEG acetic acidAminoPEG carboxylic acidAminopolyoxyethylene acetic acid

Bioconjugation and Surface Modification
This compound enables the covalent attachment of biomolecules or the functionalisation of surfaces through its amine and carboxylic acid groups. It is ideal for creating bioactive surfaces and improving the solubility or stability of therapeutic agents.
Drug Delivery Systems
As a PEG derivative, it can be incorporated into nanoparticles, liposomes, or hydrogels to enhance drug circulation time and targeted delivery. The terminal functional groups allow for the conjugation of targeting ligands or drugs.
Materials Science Research
Used in the development of novel polymers and advanced materials, it facilitates the creation of complex architectures and stimuli-responsive systems. Its bifunctional nature allows for controlled polymerisation and crosslinking.
| Linear formula | H2NC2H4O(C2H4O)nCH2CO2H |
|---|---|
| Form | solid |
| Storage temperature | −20°C |
| Melting point | 56-61 °C |
| Mol Wt | PEG average Mn 10,000 (n ~230)average Mn 10,100 |
|---|
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Poly(ethylene glycol) 2-aminoethyl ether acetic acid used for?
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Poly(ethylene glycol) 2-aminoethyl ether acetic acid is primarily used in bioconjugation, surface modification, and drug delivery systems due to its heterobifunctional nature, possessing both amine and carboxylic acid termini.
What is the CAS number and formula for Poly(ethylene glycol) 2-aminoethyl ether acetic acid?
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The CAS number is 139729-28-5, and the linear formula is H2NC2H4O(C2H4O)nCH2CO2H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Poly(ethylene glycol) 2-aminoethyl ether acetic acid with an average molecular weight of 10,000 g/mol. This product is intended for research and development purposes and is not represented as USP, BP, or EP grade.
How should Poly(ethylene glycol) 2-aminoethyl ether acetic acid be handled and stored?
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Poly(ethylene glycol) 2-aminoethyl ether acetic acid has a melting point of 56-61 °C. It should be stored at -20°C. Refer to the Safety Data Sheet for comprehensive handling and hazard information.
Is this product a controlled substance?
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Based on the provided data, Poly(ethylene glycol) 2-aminoethyl ether acetic acid is not indicated as a controlled substance.
How are Tech Serve Solutions products packed and shipped?
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Tech Serve Solutions ensures products are securely packed for export, adhering to international shipping regulations for chemicals.
How can I request a sample or quote for this chemical?
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To request a sample or a quote for Poly(ethylene glycol) 2-aminoethyl ether acetic acid, please contact our sales department via the website or direct email.
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