Products > Optimize Reagents > Optimize - Polymers > Ethylene imine polymer
Ethylene imine polymer
Applications
- Crystallization grade Ethylene imine polymer solution for formulating screens or for optimization
Features
- Sterile filtered solution
- Formulated in Type 1+ ultrapure water: 18.2 megaohm-cm resistivity at 25°C, < 5 ppb Total Organic Carbon, bacteria free (<1 Bacteria (CFU/ml)), pyrogen free (<0.03 Endotoxin (EU/ml)), RNase-free (< 0.01 ng/mL) and DNase-free (< 4 pg/µL)
Description
Ethylene imine polymer
Synonyms: PEI or Poly(ethylene imine) or Poly(ethyleneimine) solution or Ethyleneimine polymer solution
H2NCH2(C22H55N11)nCH2NH2
Mr 600,000 to 1,000,000
CAS [9002-98-6]
EC Number 205-793-9
MDL Number MFCD00084427
Sterile filtered solution
Density 1.08 g/mL at 20°C
Refractive Index N20/D: 1.440 - 1.455
Structural Viscosity: 18 - 40PAS
Appearance (Color): Faint yellow to yellow in color; clear to slightly opaque viscous liquid
Ethylene imine polymer is utilized in Crystal Screen 2 crystallization screen and StockOptions Polymer
HR2-599 Measured Refractive Index Range: 1.44909 - 1.45291 at 20°C
HR2-599 Measured Conductivity Range: 237.5 - 328.0 µS/cm at 25°C
HR2-600 Measured Refractive Index Range: 1.36837 - 1.36837 at 20°C
HR2-600Measured Conductivity Range: 52.5 - 52.5 mS/cm at 25°C
Support Material(s)
HR2-600 Ethylene imine polymer SDSCertificate Of Analysis
References
1. Acta Cryst. (2004). D60, 952-953, Crystallization of the mosquito-larvicidal binary toxin produced by Bacillus sphaericus A. W. Smith, A. Camara-Artigas and J. P. Allen.
2. Acta Cryst. (2010). D66, 685-697, A crystallization screen based on alternative polymeric precipitants, C. Grimm, A. Chari, K. Reuter and U. Fischer.