# 1,4-bis(dimethylsiloxy) phenylene dimethyl polysiloxane — GC column stationary phase cross-reference by manufacturer

For 1,4-bis(dimethylsiloxy) phenylene dimethyl polysiloxane, usp g-code(s) is G27, G36; agilent equivalents is DB-5msUI, DB-5Q, DB-5ms, DB-UI 8270D; restek equivalents is RMX-5Sil MS; phenomenex equivalents is ZB-5MSPLUS, ZB-Semivolatiles; supelco/merck equivalents is SLB-5ms, verified against its source on 2026-08-15.

- **Phase chemistry:** 1,4-bis(dimethylsiloxy) phenylene dimethyl polysiloxane _(verified: appears in the quote below)_
- **USP G-code(s):** G27, G36 _(verified: appears in the quote below)_
- **Agilent equivalents:** DB-5msUI, DB-5Q, DB-5ms, DB-UI 8270D _(verified: appears in the quote below)_
- **Restek equivalents:** RMX-5Sil MS _(verified: appears in the quote below)_
- **Phenomenex equivalents:** ZB-5MSPLUS, ZB-Semivolatiles _(verified: appears in the quote below)_
- **Supelco/Merck equivalents:** SLB-5ms _(verified: appears in the quote below)_
- **SGE/Trajan equivalents:** BPX5 _(verified: appears in the quote below)_
- **Macherey-Nagel equivalents:** OPTIMA 5 MS Accent _(verified: appears in the quote below)_

## What the source says

> RMX-5Sil MS | 1,4-bis(dimethylsiloxy) phenylene dimethyl polysiloxane | G27, G36 | DB-5msUI, DB-5Q, DB-5ms, DB-UI 8270D | BPX5 | ZB-5MSPLUS, ZB-Semivolatiles | OPTIMA 5 MS Accent | SLB-5ms | |

## 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/).