Agilent Extend-C18, 4.6 x 100mm 1.8um 600 bar 728975-902

The Agilent ZORBAX Extend-C18 (catalog 728975-902) is a 4.6 x 100 mm, 1.8 µm UHPLC reversed-phase column intended for analytical HPLC separations. It employs Extend-C18 chemistry on 80 Å fully porous silica and is rated to 600 bar with a usable pH range of 2–11.5. Typical applications include high-efficiency separations of small molecules and short peptides (manufacturer data list an upper mass guideline near 3000 Da) on UHPLC systems, especially when high-pH mobile phases are required.

Key Features:

• Phase: ZORBAX Extend-C18 (Extend-C18 chemistry)
• Dimensions: 4.6 mm ID × 100 mm length
• Particle size: 1.8 µm (fully porous)
• Pore size: 80 Å
• Pressure rating: 600 bar
• pH range: 2–11.5; USP designation L1

Advantages:

• High pH stability (to pH 11.5) permits reliable separations of basic analytes that require alkaline mobile phases.
• 1.8 µm particles combined with a 600 bar rating enable UHPLC-level efficiency for faster, higher-resolution analyses.
• 80 Å pore size and manufacturer-stated molecular-weight guideline support analysis of small molecules and short peptides.
• ZORBAX Extend-C18 (USP L1) provides general-purpose reversed-phase retention suitable for a wide range of nonpolar to moderately polar compounds.