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Agilent ZORBAX Extend-C18 HPLC Columns

Zorbax Extend-C18 HPLC Columns from Agilent

Extend-C18 columns incorporate a unique patented bidentate silane, combined with a double-endcapping process that protects the silica from dissolution at high pH - up to pH 11.5. Columns are best applied for separations of compounds that are either (1) basic and have little or no retention at low or intermediate pHs, (2) more stable or more soluble at high pH, or (3) basic and show poor peak shape at low or intermediate pH.

Agilent ZORBAX Extend-C18 HPLC columns offer high efficiency and selectivity advantages for basic compounds using high pH mobile phases up to pH 11.5. The Extend-C18 columns use a novel bidentate C18-C18 bonding technology combined with a double endcapping process to protect the silica from dissolution at high pH. This results in highly efficient separations with superior peak shape and improved resolution. Based on traditional, fully porous particles available in 1.8 µm, 3.5 µm, and 5 µm sizes for UHPLC and HPLC methods.

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Part Number Short Description Phase Type Phase USP Particle Size ID Length Pore Size Type Price Qty
764953-902 ZORBAX Extend C18 4.6 x 100mm 3.5um Column C18 ZORBAX Extend-C18 L1 3.5 um 4.6 mm 100 mm 80 A Column
£604.00
763600-902 ZORBAX Extend-C18 1 x 150mm 3.5um Column C18 ZORBAX Extend-C18 L1 3.5 um 1.0 mm 150 mm 80 A Column
£619.00
765600-902 ZORBAX Extend-C18 1 x 50mm 3.5 mm Column C18 ZORBAX Extend-C18 L1 3.5 um 1.0 mm 50 mm 80 A Column
£460.00
758700-902 ZORBAX Extend-C18 2.1 x 100mm 1.8um 1200 Bar RRHD Column C18 ZORBAX Extend-C18 L1 1.8 um 2.1 mm 100 mm 80 A Column
£657.00
728700-902 ZORBAX Extend-C18 2.1 x 100mm 1.8um 600 Bar RRHT Column C18 ZORBAX Extend-C18 L1 1.8 um 2.1 mm 100 mm 80 A Column
£642.00
758700-902K ZORBAX Extend-C18 2.1 x 100mm 1.8um RRHD Method Validation Kit C18 ZORBAX Extend-C18 L1 1.8 um 2.1 mm 100 mm 80 A Validation Kit
£1,971.00
761753-902 ZORBAX Extend-C18 2.1 x 100mm 3.5um Column C18 ZORBAX Extend-C18 L1 3.5 um 2.1 mm 100 mm 80 A Column
£604.00
821125-930 ZORBAX Extend-C18 2.1 x 12.5mm 5um Guard 4pk C18 ZORBAX Extend-C18 L1 5 um 2.1 mm 12.5 mm 80 A Guard
£206.00
759700-902 ZORBAX Extend-C18 2.1 x 150mm 1.8um 1200 Bar RRHD Column C18 ZORBAX Extend-C18 L1 1.8 um 2.1 mm 150 mm 80 A Column
£801.00
759700-902K ZORBAX Extend-C18 2.1 x 150mm 1.8um RRHD Method Validation Kit C18 ZORBAX Extend-C18 L1 1.8 um 2.1 mm 150 mm 80 A Validation Kit
£2,402.00
773700-902 ZORBAX Extend-C18 2.1 x 150mm 5um Column C18 ZORBAX Extend-C18 L1 5 um 2.1 mm 150 mm 80 A Column
£598.00
726700-902 ZORBAX Extend-C18 2.1 x 20mm 1.8um 600 Bar RRHT Column C18 ZORBAX Extend-C18 L1 1.8 um 2.1 mm 20 mm 80 A Column
£334.00
724700-902 ZORBAX Extend-C18 2.1 x 30mm 1.8um 600 Bar RRHT Column C18 ZORBAX Extend-C18 L1 1.8 um 2.1 mm 30 mm 80 A Column
£414.00
757700-902 ZORBAX Extend-C18 2.1 x 50mm 1.8um 1200 Bar RRHD Column C18 ZORBAX Extend-C18 L1 1.8 um 2.1 mm 50 mm 80 A Column
£636.00
727700-902 ZORBAX Extend-C18 2.1 x 50mm 1.8um 600 Bar RRHT Column C18 ZORBAX Extend-C18 L1 1.8 um 2.1 mm 50 mm 80 A Column
£555.00
757700-902K ZORBAX Extend-C18 2.1 x 50mm 1.8um RRHD Method Validation Kit C18 ZORBAX Extend-C18 L1 1.8 um 2.1 mm 50 mm 80 A Validation Kit
£1,891.00
735700-902 ZORBAX Extend-C18 2.1 x 50mm 3.5um Column C18 ZORBAX Extend-C18 L1 3.5 um 2.1 mm 50 mm 80 A Column
£472.00
760450-902 ZORBAX Extend-C18 2.1 x 50mm 5um Column C18 ZORBAX Extend-C18 L1 5 um 2.1 mm 50 mm 80 A Column
£424.00
821725-907 ZORBAX Extend-C18 2.1mm 1.8um UHPLC Guard 3pk C18 ZORBAX Extend-C18 L1 1.8 um 2.1 mm 5 mm 80 A Guard
£465.00
758700-302 ZORBAX Extend-C18 3 x 100mm 1.8um 1200 Bar RRHD Column C18 ZORBAX Extend-C18 L1 1.8 um 3.0 mm 100 mm 80 A Column
£657.00
728975-302 ZORBAX Extend-C18 3 x 100mm 1.8um 600 Bar RRHT Column C18 ZORBAX Extend-C18 L1 1.8 um 3.0 mm 100 mm 80 A Column
£642.00
758700-302K ZORBAX Extend-C18 3 x 100mm 1.8um RRHD Method Validation Kit C18 ZORBAX Extend-C18 L1 1.8 um 3.0 mm 100 mm 80 A Validation Kit
£1,990.00
764953-302 ZORBAX Extend-C18 3 x 100mm 3.5um Column C18 ZORBAX Extend-C18 L1 3.5 um 3.0 mm 100 mm 80 A Column
£604.00
759700-302 ZORBAX Extend-C18 3 x 150mm 1.8um 1200 Bar RRHD Column C18 ZORBAX Extend-C18 L1 1.8 um 3.0 mm 150 mm 80 A Column
£801.00
763954-302 ZORBAX Extend-C18 3 x 150mm 3.5um Column C18 ZORBAX Extend-C18 L1 3.5 um 3.0 mm 150 mm 80 A Column
£658.00
773450-302 ZORBAX Extend-C18 3 x 150mm 5um Column C18 ZORBAX Extend-C18 L1 5 um 3.0 mm 150 mm 80 A Column
£581.00
770450-302 ZORBAX Extend-C18 3 x 250mm 5um Column C18 ZORBAX Extend-C18 L1 5 um 3.0 mm 250 mm 80 A Column
£647.00
757700-302 ZORBAX Extend-C18 3 x 50mm 1.8um 1200 Bar RRHD Column C18 ZORBAX Extend-C18 L1 1.8 um 3.0 mm 50 mm 80 A Column
£630.00
727975-302 ZORBAX Extend-C18 3 x 50mm 1.8um 600 Bar RRHT Column C18 ZORBAX Extend-C18 L1 1.8 um 3.0 mm 50 mm 80 A Column
£555.00
757700-302K ZORBAX Extend-C18 3 x 50mm 1.8um RRHD Method Validation Kit C18 ZORBAX Extend-C18 L1 1.8 um 3.0 mm 50 mm 80 A Validation Kit
£1,909.00
735954-302 ZORBAX Extend-C18 3 x 50mm 3.5um Column C18 ZORBAX Extend-C18 L1 3.5 um 3.0 mm 50 mm 80 A Column
£472.00
766953-302 ZORBAX Extend-C18 3 x 75mm 3.5um Column C18 ZORBAX Extend-C18 L1 3.5 um 3.0 mm 75 mm 80 A Column
£557.00
823750-937 ZORBAX Extend-C18 3mm 1.8um UHPLC Guard 3pk C18 ZORBAX Extend-C18 L1 1.8 um 3.0 mm 5 mm 80 A Guard
£479.00
728975-902 ZORBAX Extend-C18 4.6 x 100mm 1.8um 600 Bar RRHT Column C18 ZORBAX Extend-C18 L1 1.8 um 4.6 mm 100 mm 80 A Column
£648.00
728975-902K ZORBAX Extend-C18 4.6 x 100mm 1.8um Method Validation Kit C18 ZORBAX Extend-C18 L1 1.8 um 4.6 mm 100 mm 80 A Validation Kit
£1,945.00
764953-902K ZORBAX Extend-C18 4.6 x 100mm 3.5um Method Validation Kit C18 ZORBAX Extend-C18 L1 3.5 um 4.6 mm 100 mm 80 A Validation Kit
£1,811.00
820950-930 ZORBAX Extend-C18 4.6 x 12.5mm 5um Guard 4pk C18 ZORBAX Extend-C18 L1 5 um 4.6 mm 12.5 mm 80 A Guard
£206.00
763953-902 ZORBAX Extend-C18 4.6 x 150mm 3.5um Column C18 ZORBAX Extend-C18 L1 3.5 um 4.6 mm 150 mm 80 A Column
£658.00
763953-902K ZORBAX Extend-C18 4.6 x 150mm 3.5um Method Validation Kit C18 ZORBAX Extend-C18 L1 3.5 um 4.6 mm 150 mm 80 A Validation Kit
£1,975.00
773450-902 ZORBAX Extend-C18 4.6 x 150mm 5um Column C18 ZORBAX Extend-C18 L1 5 um 4.6 mm 150 mm 80 A Column
£598.00
773450-902K ZORBAX Extend-C18 4.6 x 150mm 5um Method Validation Kit C18 ZORBAX Extend-C18 L1 5 um 4.6 mm 150 mm 80 A Validation Kit
£1,776.00
726975-902 ZORBAX Extend-C18 4.6 x 20mm 1.8um 600 Bar RRHT Column C18 ZORBAX Extend-C18 L1 1.8 um 4.6 mm 20 mm 80 A Column
£334.00
770953-902 ZORBAX Extend-C18 4.6 x 250mm 3.5um Column C18 ZORBAX Extend-C18 L1 3.5 um 4.6 mm 250 mm 80 A Column
£725.00
770450-902 ZORBAX Extend-C18 4.6 x 250mm 5um Column C18 ZORBAX Extend-C18 L1 5 um 4.6 mm 250 mm 80 A Column
£647.00
770450-902K ZORBAX Extend-C18 4.6 x 250mm 5um Method Validation Kit C18 ZORBAX Extend-C18 L1 5 um 4.6 mm 250 mm 80 A Validation Kit
£1,923.00
724975-902 ZORBAX Extend-C18 4.6 x 30mm 1.8um 600 Bar RRHT Column C18 ZORBAX Extend-C18 L1 1.8 um 4.6 mm 30 mm 80 A Column
£410.00
722975-902 ZORBAX Extend-C18 4.6 x 50mm 1.8um 400 Bar Column C18 ZORBAX Extend-C18 L1 1.8 um 4.6 mm 50 mm 80 A Column
£561.00
727975-902 ZORBAX Extend-C18 4.6 x 50mm 1.8um 600 Bar RRHT Column C18 ZORBAX Extend-C18 L1 1.8 um 4.6 mm 50 mm 80 A Column
£555.00
727975-902K ZORBAX Extend-C18 4.6 x 50mm 1.8um Method Validation Kit C18 ZORBAX Extend-C18 L1 1.8 um 4.6 mm 50 mm 80 A Validation Kit
£1,665.00
735953-902 ZORBAX Extend-C18 4.6 x 50mm 3.5um Column C18 ZORBAX Extend-C18 L1 3.5 um 4.6 mm 50 mm 80 A Column
£472.00
735953-902K ZORBAX Extend-C18 4.6 x 50mm 3.5um Method Validation Kit C18 ZORBAX Extend-C18 L1 3.5 um 4.6 mm 50 mm 80 A Validation Kit
£1,402.00
746450-902 ZORBAX Extend-C18 4.6 x 50mm 5um Column C18 ZORBAX Extend-C18 L1 5 um 4.6 mm 50 mm 80 A Column
£424.00
766953-902 ZORBAX Extend-C18 4.6 x 75mm 3.5um Column C18 ZORBAX Extend-C18 L1 3.5 um 4.6 mm 75 mm 80 A Column
£557.00
820750-906 ZORBAX Extend-C18 4.6mm 1.8um UHPLC Guard 3pk C18 ZORBAX Extend-C18 L1 1.8 um 4.6 mm 5 mm 80 A Guard
£470.00
Add to Compare
  • Robust performance and long lifetimes under high pH
  • Unique bidentate bonding and double endcapping provides high pH stability
  • More efficiency and better peak shape than polymer-based columns
  • Improve retention, resolution and peak shape of basic compounds
  • High sensitivity for LC/MS separations using ammonium hydroxide at pH 10.5
  • Guards extend the lifetime of analytical columns
  • USP L1 classification
  • 1.8 µm RRHD columns rated to 1200 bar for highest UHPLC performance, and 1.8 µm RRHT columns ultra-fast chromatography rated to 600 bar
  • 3.5 µm columns rated to 400 bar for higher resolution HPLC methods
  • 5 µm columns for proven and reliable HPLC  methods
  • Available in 7 µm for preparative HPLC
  ZORBAX Extend-C18
Bonded Phase C18
Particle Type Fully Porous
Particle Size 1.8 µm, 3.5 µm, 5 µm, 7 µm
Pore Size 80 Å
Surface Area 180 m2/g
Endcapped Double
Carbon Load 4%
Maximum Temperature 60°C
pH Range 2 - 11.5
Pressure Limit 1.8 µm RRHT - 600 bar
1.8 µm RRHD - 1200 bar
3.5 µm - 400 bar
5 µm - 400 bar
Hardware Stainless Steel
USP Designation L1
Zorbax Columns Poster (2.76 MB)
A proven and reliable portfolio of totally porous HPLC columns
Zorbax RRHD Column Brochure (2.17 MB)
Achieve true high-definition separations without sacrificing stability
Zorbax Method Validation Kits (786.77 kB)
Validation Kits contain 3 HPLC columns with the same column type but from different manufacturing lots
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