Reference Source

diphenyl dimethyl polysiloxane

For diphenyl dimethyl polysiloxane, usp g-code(s) is G32; restek equivalents is Rtx-20; supelco/merck equivalents is SPB-20; quadrex equivalents is 007-20, verified against its source on 2026-08-15.

Phase chemistry
diphenyl dimethyl polysiloxane verified
USP G-code(s)
G32 verified
Restek equivalents
Rtx-20 verified
Supelco/Merck equivalents
SPB-20 verified
Quadrex equivalents
007-20 verified
Agilent equivalents
CP-Sil 8 CB, DB-5, HP-5 per restek.com
Phenomenex equivalents
ZB-5 per restek.com
SGE/Trajan equivalents
BP5 per restek.com
Macherey-Nagel equivalents
OPTIMA 5 per restek.com
Sourcerestek.com
Verified
Review by
DatasetGC column stationary phase cross-reference by manufacturer

What the source says

Rtx-20 | diphenyl dimethyl polysiloxane | G32 | | | | | SPB-20 | 007-20

— restek.com, retrieved 2026-08-15

Sources disagree

More than one authority states this, and they do not state the same thing. Both are reproduced with the source each came from — deciding between them is yours, not ours.

USP G-code(s)

restek.com says usp g-code(s) is G32, as of 2026-08-15.

Rtx-20 | diphenyl dimethyl polysiloxane | G32 | | | | | SPB-20 | 007-20

https://www.restek.com/articles/gc-column-cross-reference

restek.com says usp g-code(s) is G27, G36, as of 2026-08-15.

Rtx-5 | diphenyl dimethyl polysiloxane | G27, G36 | CP-Sil 8 CB, DB-5, HP-5 | BP5 | ZB-5 | OPTIMA 5 | Equity-5, SPB-5 | 007-5

https://www.restek.com/articles/gc-column-cross-reference

discover.restek.com says usp g-code(s) is G27, G36, as of 2026-08-15.

Rtx-5MS | diphenyl dimethyl polysiloxane | G27, G36 | CP-Sil 8 CB, DB-5, HP-5, HP-5ms, Ultra-2 | | ZB-5, ZB-5MS | | Equity-5, SPB-5 | |

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

discover.restek.com says usp g-code(s) is G27, G36, as of 2026-08-15.

Rxi-5HT | diphenyl dimethyl polysiloxane | G27, G36 | DB-5ht, VF-5ht | HT5 | ZB-5HTinferno | OPTIMA 5HT | | 007-5HT |

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

discover.restek.com says usp g-code(s) is G42, as of 2026-08-15.

Rtx-35 | diphenyl dimethyl polysiloxane | G42 | HP-35, DB-35 | | ZB-35 | | SPB-35 | 007-35 |

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

discover.restek.com says usp g-code(s) is G3, as of 2026-08-15.

Rxi-17 | diphenyl dimethyl polysiloxane | G3 | DB-17 | | ZB-50 | OPTIMA 17 | | |

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

discover.restek.com says usp g-code(s) is G27, G36, as of 2026-08-15.

MXT-5 | diphenyl dimethyl polysiloxane | G27, G36 | DB-PS5, VF-5ht UltiMetal | | | | | UAC-5, UAC-5MS |

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

Restek equivalents

restek.com says restek equivalents is Rtx-20, as of 2026-08-15.

Rtx-20 | diphenyl dimethyl polysiloxane | G32 | | | | | SPB-20 | 007-20

https://www.restek.com/articles/gc-column-cross-reference

restek.com says restek equivalents is Rtx-5, as of 2026-08-15.

Rtx-5 | diphenyl dimethyl polysiloxane | G27, G36 | CP-Sil 8 CB, DB-5, HP-5 | BP5 | ZB-5 | OPTIMA 5 | Equity-5, SPB-5 | 007-5

https://www.restek.com/articles/gc-column-cross-reference

discover.restek.com says restek equivalents is Rtx-5MS, as of 2026-08-15.

Rtx-5MS | diphenyl dimethyl polysiloxane | G27, G36 | CP-Sil 8 CB, DB-5, HP-5, HP-5ms, Ultra-2 | | ZB-5, ZB-5MS | | Equity-5, SPB-5 | |

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

discover.restek.com says restek equivalents is Rxi-5HT, as of 2026-08-15.

Rxi-5HT | diphenyl dimethyl polysiloxane | G27, G36 | DB-5ht, VF-5ht | HT5 | ZB-5HTinferno | OPTIMA 5HT | | 007-5HT |

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

discover.restek.com says restek equivalents is Rtx-35, as of 2026-08-15.

Rtx-35 | diphenyl dimethyl polysiloxane | G42 | HP-35, DB-35 | | ZB-35 | | SPB-35 | 007-35 |

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

discover.restek.com says restek equivalents is Rxi-17, as of 2026-08-15.

Rxi-17 | diphenyl dimethyl polysiloxane | G3 | DB-17 | | ZB-50 | OPTIMA 17 | | |

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

discover.restek.com says restek equivalents is Rtx-65, as of 2026-08-15.

Rtx-65 | diphenyl dimethyl polysiloxane | | | | | | | 007-65HT |

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

discover.restek.com says restek equivalents is MXT-5, as of 2026-08-15.

MXT-5 | diphenyl dimethyl polysiloxane | G27, G36 | DB-PS5, VF-5ht UltiMetal | | | | | UAC-5, UAC-5MS |

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

discover.restek.com says restek equivalents is MXT-65TG, as of 2026-08-15.

MXT-65TG | diphenyl dimethyl polysiloxane | | CP-TAP-CB Ultimetal | | | | | UAC-65HT |

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

Supelco/Merck equivalents

restek.com says supelco/merck equivalents is SPB-20, as of 2026-08-15.

Rtx-20 | diphenyl dimethyl polysiloxane | G32 | | | | | SPB-20 | 007-20

https://www.restek.com/articles/gc-column-cross-reference

restek.com says supelco/merck equivalents is Equity-5, SPB-5, as of 2026-08-15.

Rtx-5 | diphenyl dimethyl polysiloxane | G27, G36 | CP-Sil 8 CB, DB-5, HP-5 | BP5 | ZB-5 | OPTIMA 5 | Equity-5, SPB-5 | 007-5

https://www.restek.com/articles/gc-column-cross-reference

discover.restek.com says supelco/merck equivalents is Equity-5, SPB-5, as of 2026-08-15.

Rtx-5MS | diphenyl dimethyl polysiloxane | G27, G36 | CP-Sil 8 CB, DB-5, HP-5, HP-5ms, Ultra-2 | | ZB-5, ZB-5MS | | Equity-5, SPB-5 | |

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

discover.restek.com says supelco/merck equivalents is SPB-35, as of 2026-08-15.

Rtx-35 | diphenyl dimethyl polysiloxane | G42 | HP-35, DB-35 | | ZB-35 | | SPB-35 | 007-35 |

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

Quadrex equivalents

restek.com says quadrex equivalents is 007-20, as of 2026-08-15.

Rtx-20 | diphenyl dimethyl polysiloxane | G32 | | | | | SPB-20 | 007-20

https://www.restek.com/articles/gc-column-cross-reference

restek.com says quadrex equivalents is 007-5, as of 2026-08-15.

Rtx-5 | diphenyl dimethyl polysiloxane | G27, G36 | CP-Sil 8 CB, DB-5, HP-5 | BP5 | ZB-5 | OPTIMA 5 | Equity-5, SPB-5 | 007-5

https://www.restek.com/articles/gc-column-cross-reference

discover.restek.com says quadrex equivalents is 007-5HT, as of 2026-08-15.

Rxi-5HT | diphenyl dimethyl polysiloxane | G27, G36 | DB-5ht, VF-5ht | HT5 | ZB-5HTinferno | OPTIMA 5HT | | 007-5HT |

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

discover.restek.com says quadrex equivalents is 007-35, as of 2026-08-15.

Rtx-35 | diphenyl dimethyl polysiloxane | G42 | HP-35, DB-35 | | ZB-35 | | SPB-35 | 007-35 |

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

discover.restek.com says quadrex equivalents is 007-65HT, as of 2026-08-15.

Rtx-65 | diphenyl dimethyl polysiloxane | | | | | | | 007-65HT |

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

discover.restek.com says quadrex equivalents is UAC-5, UAC-5MS, as of 2026-08-15.

MXT-5 | diphenyl dimethyl polysiloxane | G27, G36 | DB-PS5, VF-5ht UltiMetal | | | | | UAC-5, UAC-5MS |

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

discover.restek.com says quadrex equivalents is UAC-65HT, as of 2026-08-15.

MXT-65TG | diphenyl dimethyl polysiloxane | | CP-TAP-CB Ultimetal | | | | | UAC-65HT |

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

Sources

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