Ascentis Express C18 · Sigma-Aldrich / Merck

For Ascentis Express C18, original column's brand is Sigma-Aldrich / Merck; gl sciences direct replacement is InertCore Plus C18; gl sciences alternative is InertCore Plus C18; bonded phase is C18; waters closest selectivity column is CORTECS C18, recorded from its source on 2026-09-01; source re-checked 2026-09-30.

Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.

What the source says

Ascentis Express C18 | InertCore Plus C18 View App Notes | InertCore Plus C18 View App Notes |

— glsciencesinc.com, retrieved 2026-09-01

Where each value comes from

These values are stated in different places, and not all on the same page, so each is shown with the passage that states it and the source that passage came from.

Sources

• glsciencesinc.comhttps://www.glsciencesinc.com/hplc-column-equivalents
• waters.comhttps://www.waters.com/waters/en_US/Column-Comparison-Chart-for-UPLC,-UHPLC,-HPLC/nav.htm?cid=135047266

Last verified against source: 2026-09-30. Due for re-check by 2027-09-30. This page as Markdown · OKF bundle · full dataset as JSON.