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SiliCycle SiliaFlash Irregular Silica Gel, 15 to 40 um, 60 A, Qty: 10 kg, Particle Size: 15 to 40 um, Technique: Column Chromatography, Bulk Irregular Silica Gel, CAS: 7631-86-9, Content And Storage: Keep dry, For Use With: Chromatography, purification, P