IHC ancillary reagents and accessories for Dako Omnis offer components in a user-friendly format that supports customers to easily run automated IHC protocols on Dako Omnis. The reagents include EnVision FLEX Substrate Chromogen Systems, Hematoxylin, Clearify, Sulfuric Acid, and Wash Buffer. The accessories include Reagent Vials to allow user-defined reagents on Dako Omnis, Mixing Strip for onboard mixing on chromogen working solution, Slide Racks, and Color Clips for easier identification of slide racks.