N -甲基-双（三氟乙酰胺）

N -甲基-双（三氟乙酰胺）, derivatization grade (GC derivatization), LiChropur^™, ≥97.0% (GC)

N -甲基-双（三氟乙酰胺）, derivatization grade (GC derivatization), LiChropur^™, ≥99.0% (GC)