OptiPrep™ is a sterile and endotoxin tested multi-purpose medium based on iodixanol. Unlike any of these other gradient media, iodixanol (as an X-ray imaging agent) has been clinically tested and is manufactured under strict and EU cGMP compliance.OptiPrep™ specifications:Iodixanol: 60% (w/v)Density: 1.320 0.001 g/mlOsmolality: approx. 170 mOsmEndotoxins: < 1.0 EU/ml
