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408719

Sigma-Aldrich

Polyethylenimine, branched

average Mw ~800 by LS, average Mn ~600 by GPC

Synonym(s):

PEI, ethylenediamine branched

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About This Item

Linear Formula:
H(NHCH2CH2)nNH2
CAS Number:
MDL number:
UNSPSC Code:
12162002
NACRES:
NA.23

Pricing and availability is not currently available.

form

viscous liquid

Quality Level

mol wt

average Mn ~600 by GPC
average Mw ~800 by LS

refractive index

n20/D 1.5240

density

1.050 g/mL at 25 °C

InChI

1S/C2H8N2.C2H5N/c3-1-2-4;1-2-3-1/h1-4H2;3H,1-2H2

InChI key

SFLOAOINZSFFAE-UHFFFAOYSA-N

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This Item
G0295G4416G4291
biological source

rabbit

biological source

rabbit

biological source

rabbit

biological source

rabbit

conjugate

unconjugated

conjugate

unconjugated

conjugate

unconjugated

conjugate

unconjugated

antibody form

affinity isolated antibody

antibody form

affinity isolated antibody

antibody form

affinity isolated antibody

antibody form

affinity isolated antibody

form

lyophilized powder

form

buffered aqueous glycerol solution

form

lyophilized powder

form

lyophilized powder

technique(s)

western blot: 1:200 using rat brain membranes

technique(s)

western blot: 1:1000 using rat brain membrane fraction.

technique(s)

immunohistochemistry: suitable using rat brain sections, western blot: 1:400-1:1,000 using rat brain membranes

technique(s)

immunohistochemistry: 1:200 using Rat brain frozen sections, western blot: 1:200-1:300 using Rat brain membranes

General description

Polyethyleneimine is a hydrophilic polymerwidely used as a non-viral synthetic vector for invivo delivery of therapeutic nucleic acids. Owing to its excellentphysicochemical properties, it is applied in many fields like the separationand purification of proteins, carbon dioxide absorption, drug carriers,effluent treatment, and biological labels.

Application

Branched PEI can be used as a precursor to synthesize conjugated polyplexes for efficient gene transfection. Conjugation of PEI with Jeffamine polyether and guanidinylation of the amino groups of PEI reduce the cytotoxicity of the polyplexes and protect them from aggregation in the presence of serum proteins.

Bamboo charcoal impregnated with PEI can be used as a CO2 adsorbent. Numerous amino groups present in PEI can react with CO2 due to acid-alkali interaction and enhance the adsorption capacity of bamboo charcoal.

It can also be used to prepare cross-linked water-soluble polymers with high coordination capabilities towards organic drug molecules.

Features and Benefits

  • Branched PEI has better complexation and buffering capacity.
  • High ion exchange capacity and affinity toward proteins.
  • SignificantDNA transfer efficiency.

Physical form

Branched polymer

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 2 - Eye Dam. 1

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

356.0 °F

Flash Point(C)

180 °C

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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