Ultrasep ES 100 RP3

Short-Chain Reversed-Phase Column for Fast and Selective HPLC

Ultrasep ES 100 RP3 is a silica-based HPLC column with a 100 Å pore size and a C3 (propyl) bonded phase. The short alkyl chain provides low to moderate hydrophobic retention, enabling faster elution than C8 or C18 columns while still offering better retention than C1 phases. This makes it a versatile option for analytes that are strongly retained on longer alkyl chains.

With its excellent reproducibility, sharp peak symmetry, and robust performance, RP3 is well-suited for both routine QC analysis and method development requiring alternative selectivity.

Ultrasep ES 100 RP3 combines fast elution with reproducible selectivity – the reliable choice for efficient reversed-phase HPLC separations.

Key Features:

  • Silica-based stationary phase with 100 Å pore size

  • Propyl (C3) bonded phase – USP L10 classification

  • Provides low to moderate hydrophobic retention

  • Faster elution than C8/C18, stronger retention than C1

  • High reproducibility and efficiency

  • Available particle size: 5 µm

Typical Applications:

  • Pharmaceutical analysis of moderately polar compounds

  • Impurity profiling where reduced retention is required

  • Environmental and food testing with fast throughput

  • Method development needing intermediate selectivity

Specifications

Request Product
Particle Size
  • 5 µm
Pore Size 100 Å
Particle Type
Separation Mode
USP Code
pH Range 2 - 8

Material Number

Phase Material Number
Ultrasep ES 100 RP3, 5 µm u15.30.
Ultrasep ES 100 RP1 Ultrasep ES 100 RP4

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