Chromalite MN polymers are hypercrosslinked microporous copolymer with a polystyrene matrix with hydrophobic properties. The proprietary method of production provides a polymer with extremely surface area that makes this product ideal for hydrophobic interaction and adsorption. High bead integrity, excellent chemical and physical stability, very low extractibles content, resistance to changes in chemical conditions,good kinetics and excellent selectivity make these products especially suitable for high purity sorption and chromatographic separations. Chromalite MN polyers are  manufactured to a controlled porosity and particle size specification for efficient chromatographic column packing.

Principal Applications

  • Analytical Reverse Phase chromatography (RP-HPLC)
  • Separation of proteins, peptides and oligonucleotides
  • Ideal for biomolecules purification and polishing


  • Highly hydrophobic adsorbent with very high surface area
  • High chemical stability (tolerates all common organic solvents)
  • More robust than silica materials
  • Easy to pack in HPLCcolumns
  • Stable up to 400bar
  • Narrow particle size range

Regulatory Approvals

  • Compliant with FDA regulation 21CFR177.2710
  • Compliant with ResAP(2004) 3
  • Halal
  • Kosher
  • TSE/BSE/GMO free

Typical Packaging

  • 10g
  • 50g
  • 100g

Typical Physical & Chemical Characteristics:

Polymer Structure Macroporous polystyrene crosslinked with divinylbenzene
Appearance Uniform spherical beads
Functional Group None
Ionic Form None
Particle size (90% in Range) 4.5 - 5.5 µm
Pore Diameter 30 (BET) Å
Surface Area (min.) 1500 (BET) m²/g
Porosity, Median Pore Diameter 200 - 250 Å
pH stability, working range 1 - 14
Supplied as Supplied as 20% EtOH slurry
Expiry date (from date of manufacture) 5 years
Total moisture 0 - 5 %
Optimal storage condition 2 - 20 °C