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InertCap 225

50 % Cyanopropylmethyl – 50 % Phenylmethylpolysiloxane
USP Phase G19
Medium Polar
Cross-Linked
Equivalent: DB-225. HP-225, Rtx-225, CP-Sil 43CB

InertCap 225 is a medium polar column incorporating 50% cyanopropylmethyl and 50% phenylmethylpolysiloxane. Cyano group contained in the liquid phase has a triple bond so it retains compounds with the high degree of unsaturation strongly by dipole interactions. Therefore InertCap 225 is useful for separating geometrical isomers in FAME analyses.

Structure