ReproSil 70 CN

Small-Pore Cyano Column for Versatile Reversed-Phase and Normal-Phase Separations

ReproSil 70 CN from Dr. Maisch HPLC GmbH is a fully porous, high-purity silica HPLC column with a 70 Å pore size and a cyanopropyl bonded phase. This stationary phase offers dual-mode capability, functioning in both reversed-phase and normal-phase chromatography, providing unique selectivity for analytes that are challenging to separate on conventional alkyl phases. The small pore size delivers high surface area for strong interactions and high efficiency in small-molecule separations.

ReproSil 70 CN columns from Dr. Maisch HPLC GmbH deliver versatile selectivity with high efficiency – the ideal choice for small-molecule separations in both reversed-phase and normal-phase HPLC.

Key Features:

  • Fully porous, ultra-pure silica with 70 Å pore size

  • Cyanopropyl bonding – USP L10 classification

  • Dual-mode operation: reversed-phase and normal-phase HPLC

  • High efficiency and reproducibility for small molecules

  • Manufactured and QC-tested by Dr. Maisch HPLC GmbH

  • Available in 5 µm

Typical Applications:

  • Separation of polar pharmaceuticals and intermediates

  • Normal-phase analysis of lipophilic small molecules

  • Method development requiring alternative selectivity

  • QC and routine testing in pharmaceutical, food, and chemical labs

Specifications

Request Product
Particle Size
  • 5 µm
Pore Size 70 Å
Surface Area 500 m²/g
Phase/Modification CN
Particle Type
Separation Modes
USP Code
Endcapping Yes
Carbonload 10 %
pH Range 2 to 8

Material Number

Phase Material Number
ReproSil 70 CN, 5 µm r05.c6.
ReproSil 70 C18 ReproSil 70 Diol

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

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