Stability 100 Amid-C25

Extra-Long-Chain Polar-Embedded Column for Robust Reversed-Phase HPLC

Stability 100 Amid-C25 from Dr. Maisch HPLC GmbH is a high-purity silica-based HPLC column with a 100 Å pore size and a polar-embedded amidic C25 bonded phase. The extra-long alkyl chain provides very strong hydrophobic retention, while the amidic functionality enhances peak symmetry and improves the separation of polar and basic analytes.

Engineered for exceptional chemical stability, this column performs reliably under extreme pH, high-temperature gradients, and aggressive mobile phases, offering extended column lifetime for demanding analytical tasks.

Stability 100 Amid-C25 columns from Dr. Maisch HPLC GmbH deliver maximum hydrophobic retention, polar selectivity, and outstanding chemical robustness – the ideal choice for challenging reversed-phase HPLC applications.

Key Features:

  • Fully porous, ultra-pure silica with 100 Å pore size

  • Polar-embedded amidic C25 bonded phase

  • Very strong hydrophobic retention combined with polar selectivity

  • Excellent performance under extreme pH and temperature conditions

  • Enhanced peak shapes for polar and basic compounds

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

Typical Applications:

  • Analysis of highly hydrophobic pharmaceuticals and drug impurities

  • Polar and basic compound separations with improved peak symmetry

  • Long-gradient methods requiring extended retention capacity

  • Stability-indicating assays under aggressive conditions

Specifications

Request Product
Particle Size
  • 5 µm
Pore Size 100 Å
Surface Area 350 m²/g
Particle Type
Separation Modes
USP Code
Endcapping Yes
pH Range 2 - 8

Material Number

Phase Material Number
Stability 100 Amid-C25, 5 µm st15.a25.
Stability 100 Amid-C18 Stability 100 BS-C13

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

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