For Research Use Only. Not for use in diagnostic procedures. Others S-Block RUO DISCOVERY RUO DISCOVERY S Block (RUO) RTD000877 Serum-based Blocking Solution for Reduction of Non-specific Binding of Antibodies for Use with DISCOVERY Detection Kits on the Ventana DISCOVERY Series of Instruments 05268931001 DISC. S Block RUO DISCOVERY S-Block (RUO) 04015630977086 Reagents, kits 760-4212 250 tests Not Available true S Block is a normal serum cocktail (goat, sheep, and donkey) reagent designed for the blocking of non-specific binding of antibodies during immunohistochemical (IHC) and in situ hybridization (ISH) protocols on the DISCOVERY series of instruments with NexES 9.0 or later software.S Block can be used at primary and/or secondary antibody steps in the ISH/IHC BlueMap Kit, DAB Map Kit, RedMap Kit, or DoubleStain procedures. S Block should be used when background staining due to the non-specific binding of primary and/or secondary antibodies is an issue. en