• USA Home
  • 482595 - Poly(ethyleneimine) solution

482595 Sigma-Aldrich

Poly(ethyleneimine) solution

average Mn ~1,200, average Mw ~1300 by LS, 50 wt. % in H2O

Synonym: Ethyleneimine polymer solution, PEI



Related Categories Branched PEI solutions, Hydrophilic Polymers, Materials Science, Poly(2-oxazoline) and Polyethylenimine (PEI), Polyethylenimine (PEI),
Quality Level   200
mol wt   average Mn ~1,200
  average Mw ~1300 by LS
concentration   50 wt. % in H2O
refractive index   n20/D 1.454
viscosity   200-500 cP(25 °C)(lit.)
density   1.08 g/mL at 25 °C
InChI   1S/C2H5N/c1-2-3-1/h3H,1-2H2


General description

Poly(ethyleneimine) (PEI) solution is an amine based chelating ligand that can be prepared by the polymerization of arizidine. It can be impregnated to form an anion exchange membrane for chromatography applications.


PEI can be used as a complexing agent in the fabrication of composite membranes, which can be used in filtration of metals from the aqueous solution.


100, 250 mL in poly bottle

Safety & Documentation

Safety Information

Signal word 
Hazard statements 
Hazard Codes (Europe) 
Risk Statements (Europe) 
Safety Statements (Europe) 
UN 3082 9 / PGIII
WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable


Certificate of Analysis (COA)

Please Enter a Lot Number

Certificate of Origin (COO)

Please Enter a Lot Number
Protocols & Articles


Functionalized Pei and Its Role in Gene Therapy

1Department of Pharmacy, Pharmaceutical Technology and Biopharmacy,  Ludwig-Maximilians-Universität München, Butenandtstraße 5, 81377  München, Germany 2Nanosystems Initiative Munich (NIM), Ludwig-Ma...
Bettina Schwarz,1 Olivia M. Merkel1,2*
Material Matters, 2017, 12.2
Keywords: Bacterial conjugations, Clinical, Condensations, Degradations, Diseases, Gene expression, Genetic, Infrared spectroscopy, Ligands, Michael Addition, Microscopy, Nanotubes, Pharmaceutical, Reductions, Substitutions, Transfection

Nanoparticle-Based Drug and Gene Delivery for Tumor Targeting

Department of Chemistry and Biochemistry, Faculty of Engineering, Kyushu University, Japan *E-mail: ykatatcm@mail.cstm.kyushu-u.ac.jp
Keywords: Amplification, Angiogenesis, Biochemistry, Cancer, Cardiovascular, Clinical, Diagnostic, Electron spin resonance, Enzyme activity, Gene expression, Genetic, Infrared spectroscopy, Reductions, Transcription

Novel Inks for Direct-Write Assembly of 3-D Periodic Structures

New methods for materials fabrication at the micro- and nanoscale will drive scientific and technological advances in areas of materials science, chemistry, physics, and biology. The broad diversity ...
Prof. Jennifer A. Lewis
Material Matters 2008, 3.1, 4.
Keywords: Applications, Biomaterials, Capabilities, Coagulants, Coagulation, Deposition, Environmental, Materials Science, Methods, Photographs, Reductions, Semiconductor, Size-exclusion chromatography, Sol-gel, Support, Type

Polyelectrolyte Multilayer Films and Membrane Functionalization

Among the many methods for preparing thin films, layer-by-layer (LbL) deposition of complementary polymers has emerged as an especially versatile technique for controlling film thickness and function...
Merlin L. Bruening, Maneesha Adusumilli
Material Matters Volume 6 Number 3
Keywords: Adsorption, Catalysis, Deposition, Diffusion, Digestions, Electrophoresis, Gel electrophoresis, Immobilization, Mass spectrometry, Nanotechnology, Phase transitions, Reductions

Related Products

Technical Service:

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?