# polyethylene glycol modified for acids — GC column stationary phase cross-reference by manufacturer

For polyethylene glycol modified for acids, usp g-code(s) is G25, G35; agilent equivalents is CP-FFAP CB, CP-Wax 58 FFAP CB, DB-FFAP, HP-FFAP, VF-DA; restek equivalents is Stabilwax-DA; phenomenex equivalents is ZB-FFAP; supelco/merck equivalents is Nukol, verified against its source on 2026-08-15.

- **Phase chemistry:** polyethylene glycol modified for acids _(verified: appears in the quote below)_
- **USP G-code(s):** G25, G35 _(verified: appears in the quote below)_
- **Agilent equivalents:** CP-FFAP CB, CP-Wax 58 FFAP CB, DB-FFAP, HP-FFAP, VF-DA _(verified: appears in the quote below)_
- **Restek equivalents:** Stabilwax-DA _(verified: appears in the quote below)_
- **Phenomenex equivalents:** ZB-FFAP _(verified: appears in the quote below)_
- **Supelco/Merck equivalents:** Nukol _(verified: appears in the quote below)_
- **SGE/Trajan equivalents:** BP21 _(verified: appears in the quote below)_
- **Macherey-Nagel equivalents:** OPTIMA FFAP, OPTIMA FFAP Plus, PERMABOND FFAP _(verified: appears in the quote below)_

## What the source says

> Stabilwax-DA | polyethylene glycol modified for acids | G25, G35 | CP-FFAP CB, CP-Wax 58 FFAP CB, DB-FFAP, HP-FFAP, VF-DA | BP21 | ZB-FFAP | OPTIMA FFAP, OPTIMA FFAP Plus, PERMABOND FFAP | Nukol | |

## 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/).