# 5% diphenyl 95% dimethyl polysiloxane — GC column stationary phase cross-reference by manufacturer

For 5% diphenyl 95% dimethyl polysiloxane, restek equivalents is Rtx-5 Amine; macherey-nagel equivalents is OPTIMA 5 Amine, verified against its source on 2026-08-15.

- **Phase chemistry:** 5% diphenyl 95% dimethyl polysiloxane _(verified: appears in the quote below)_
- **Restek equivalents:** Rtx-5 Amine _(verified: appears in the quote below)_
- **Macherey-Nagel equivalents:** OPTIMA 5 Amine _(verified: appears in the quote below)_

## What the source says

> Rtx-5 Amine | 5% diphenyl 95% dimethyl polysiloxane | | | | | OPTIMA 5 Amine | | |

## Source

- https://discover.restek.com/articles/gnot3472/gc-column-cross-reference-chart

Last verified: 2026-08-15. Review by: 2027-08-15.
Part of [GC column stationary phase cross-reference by manufacturer](https://referencesource.org/lab-instrument-consumables-equivalence/).