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: 1.45032 – 1.45291 at 20°C
HR2-599 Measured Conductivity Range: 237.5 – 320.0 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
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CAT NO
HR2-599
NAME
DESCRIPTION
200 mL
PRICE
$126.00
cart quote
CAT NO
HR2-600
NAME
DESCRIPTION
100 mL
PRICE
$126.00
cart quote
Support Material(s)
HR2-599 Ethylene imine polymer SDS Certificate 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.
Adjustable Crystal Mount-Hampton蛋白结晶
Products > Capillaries, Mounts & Supplies > Magnetic Mounts & Supports > Adjustable Crystal Mount
Adjustable Crystal Mount
Applications
- Adjustable, magnetic crystal mounting with capillaries or fibers
Features
- Adjustable Z
- Magnetic mount
- Fits XYZ Goniometer Heads with Z Platform or magnetic base
- Fast, easy, and convenient crystal positioning and retrieval
Description
The Adjustable Crystal Mount is a magnetic piece (approximately 12 mm in height, 9.8 mm in diameter) designed to position a brass specimen pin and either a capillary or glass fiber onto a goniometer head for x-ray data collection.
The Adjustable Crystal Mount is engineered to fit onto the Z Platform or magnetic base within a goniometer head. The recessed bottom properly positions the crystal mount over the center of the goniometer head and prevents the mount from sliding across the goniometer head during data collection. The bottom of the crystal mount is flat and closed to prevent the brass specimen pin from protruding through the bottom of the mount. The magnetic design allows for quick, convenient, and rapid placement and retrieval of the crystal mount. Finally, the crystal mount is designed with a single allen screw which allows the Z-translation of the brass specimen pin to be adjusted (up and down) and then secured in position by tightening the screw using a goniometer head key or 0.88 mm allen key.
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CAT NO
HR8-028
NAME
DESCRIPTION
5 pack
PRICE
$85.00
cart quote
Related Item(S)
- Glass Number 50 Capillaries
- Special Glass 10 Capillaries
- Quartz Capillaries
- Brass Specimen Pin
- Magnetic Base
Adjustable Crystal Mount-Hampton蛋白结晶
Products > Capillaries, Mounts & Supplies > Magnetic Mounts & Supports > Adjustable Crystal Mount
Adjustable Crystal Mount
Applications
- Adjustable, magnetic crystal mounting with capillaries or fibers
Features
- Adjustable Z
- Magnetic mount
- Fits XYZ Goniometer Heads with Z Platform or magnetic base
- Fast, easy, and convenient crystal positioning and retrieval
Description
The Adjustable Crystal Mount is a magnetic piece (approximately 12 mm in height, 9.8 mm in diameter) designed to position a brass specimen pin and either a capillary or glass fiber onto a goniometer head for x-ray data collection.
The Adjustable Crystal Mount is engineered to fit onto the Z Platform or magnetic base within a goniometer head. The recessed bottom properly positions the crystal mount over the center of the goniometer head and prevents the mount from sliding across the goniometer head during data collection. The bottom of the crystal mount is flat and closed to prevent the brass specimen pin from protruding through the bottom of the mount. The magnetic design allows for quick, convenient, and rapid placement and retrieval of the crystal mount. Finally, the crystal mount is designed with a single allen screw which allows the Z-translation of the brass specimen pin to be adjusted (up and down) and then secured in position by tightening the screw using a goniometer head key or 0.88 mm allen key.
Click to Zoom In
CAT NO
HR8-028
NAME
DESCRIPTION
5 pack
PRICE
$85.00
cart quote
Related Item(S)
- Glass Number 50 Capillaries
- Special Glass 10 Capillaries
- Quartz Capillaries
- Brass Specimen Pin
- Magnetic Base
