Phase: 25% Cyanopropyl, 25% phenyl, 50% Methyl Polysiloxane.r- Excellent general purpose GC columnr- Mid to High polarityr- USP Classification: G7, G19 rApplication areas: organophosphorus pesticides, food packaging residual solvents.rSuitable replacement for: DB-225, HP-225, CP-Sil 43CB, SPB-225, Rtx-225, BP225, 007-225, AT-225.