Chromalite CGA200x4 is a chromatographic anion exchange resin with a polymer designed for small organic and inorganic compound separation and purification. It contains 200 μm styrenic resin beads crosslinked with 4% divinylbenzene (DVB). Our proprietary manufacturing method creates perfectly spherical beads with exceptional kinetic and packing properties.

Unlike similar products on the market, Chromalite CGA and CGC resins are supplied in highly pure form (very low extractables content) and do not require pre-treatment. As such they are suitable for pharmaceutical applications.

  Equivalent to:
- Dowex® 1X4 50-100 mesh (Dow)
- AG 1-X4 Resin (Bio-Rad)


CGA resins occasionally exhibit an amine odour after prolonged storage (this will not affect performance).

In such cases it is recommended to rinse the affected resin with sufficient volumes of water to remove the odour before putting the resin into service.

Główne zastosowania

  • Ion exchange chromatography
  • Desalting of biomolecules after fermentation
  • Suitable for inorganic, organic and biological molecule separation


  • High chemical stability
  • Medium capacity
  • Large particle size optimal for large column packing
  • High purity
  • Exceptional kinetic and packing properties

Zgodność z regulacjami

  • Compliant with FDA regulation 21 CFR 173.25
  • Compliant with ResAP(2004) 3
  • Halal
  • Kosher
  • TSE/BSE/GMO free

Dostępność opakowań

  • 250 g
  • 1 kg


Appearance Pale yellow to dark yellow spherical beads
grupa funkcyjna Quaternary Ammonium
Supplied as Wet
Volume capacity (min.) 1 eq/l
Weight capacity (min.) 4 eq/Kg
Particle size (90% in Range) 150 - 300 µm
Total moisture 55 - 70 %
pH Limit Stability 1 - 14
Optimal storage condition 2 - 20 °C
forma jonowa Cl-
Expiry date (from date of manufacture) 5 years
usieciowany 4
Perfect Bead min. 95 %