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SiliCycle SiliaBond Functionalized Silica Gel Amine (WAX) nec, 40 to 63 um, 60 A, Qty: 25 g, Particle Size: 40 to 63 um, Technique: Column Chromatography, Bulk Functionalized Irregular Silica Gel, Content And Storage: Keep Cool (<8 deg.C) and Dry, Density