Equisorb CN

Cyanopropyl Column for Dual-Mode Normal-Phase and Reversed-Phase HPLC

Equisorb CN is a cyanopropyl-modified HPLC column based on fully porous, high-purity silica, designed for use in both normal-phase and reversed-phase chromatography. The polar CN group enables dipole-dipole interactions and provides moderate hydrophobic retention, making this column ideal for the separation of polar, aromatic, or structurally similar analytes that may be challenging to resolve on conventional alkyl phases. Equisorb CN offers flexibility, cost-efficiency, and reliable performance for routine method development and analytical applications.

Equisorb CN delivers reliable dual-mode selectivity and polar retention – an excellent choice for versatile HPLC separations in routine and exploratory workflows.

Key Features

  • Cyanopropyl (CN) bonded phase – USP L10 classification

  • Dual-mode selectivity: supports both normal-phase and reversed-phase HPLC

  • Polar interactions for aromatic and moderately polar compounds

  • Fully porous silica for stable, reproducible retention behavior

  • Available in 3 µm, 5 µm and 10 µm particle sizes

Typical Applications

  • Polar pharmaceuticals and aromatic drug substances

  • Isomer separations and selectivity screening

  • Normal-phase separations of neutral organics

  • Cost-effective reversed-phase method development

Specifications

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Particle Sizes
  • 3 µm
  • 5 µm
  • 10 µm
Pore Size 80 Å
Surface Area 220 m²/g
Phase/Modification CN
Particle Type
Separation Modes
USP Code
Endcapping No
Carbonload 7.5 %
pH Range 2 to 8

Material Numbers

Phase Material Number
Equisorb CN, 3 µm e03.c0.
Equisorb CN, 5 µm e05.c0.
Equisorb CN, 10 µm e00.c0.
Equisorb C8 Equisorb NH2

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info@dr-maisch.com +49 7073 5035 7

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