# 8% cyanopropylphenyl / 92% dimethyl polysiloxane — GC column stationary phase cross-reference by manufacturer

For 8% cyanopropylphenyl / 92% dimethyl polysiloxane, agilent equivalents is DB-1301; restek equivalents is Rtx-1301; phenomenex equivalents is ZB-1301; supelco/merck equivalents is SPB-1301; macherey-nagel equivalents is Optima 1301, verified against its source on 2026-08-15.

- **Phase chemistry:** 8% cyanopropylphenyl / 92% dimethyl polysiloxane _(verified: appears in the quote below)_
- **Agilent equivalents:** DB-1301 _(verified: appears in the quote below)_
- **Restek equivalents:** Rtx-1301 _(verified: appears in the quote below)_
- **Phenomenex equivalents:** ZB-1301 _(verified: appears in the quote below)_
- **Supelco/Merck equivalents:** SPB-1301 _(verified: appears in the quote below)_
- **Macherey-Nagel equivalents:** Optima 1301 _(verified: appears in the quote below)_

## What the source says

> <https://gs-tek.com/polysiloxane-based-stationary-phases/gsbp-1301/> GsBP-1301 8% cyanopropylphenyl / 92% dimethyl polysiloxane | DB-1301 | Rtx-1301 | SPB-1301 | AT-1301 | Optima 1301 | &#8211; | &#8211; | ZB-1301 |

## Source

- https://gs-tek.com/gc-column-cross-reference/

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/).