1 Reagents for reacting with biomolecules for scientific use; reagents for scientific use; reagents for reacting with biomolecules for research use; reagents for research use; reagents for diagnostic use in science; diagnostic reagents, buffers, and preparations, except for medical and veterinary use; biochemical reagents used for non-medical purposes for detecting and/or analyzing antigens, antibodies, proteins, ligands, or nucleotides; laboratory chemicals, namely, antibody reagents used for the detection of antigens or antibodies in liquid, cell, and tissue analysis for in vitro diagnostic use; reagents, buffers, and preparations for scientific use, namely, for altering the nature of a probe to which biomolecules bind over the course of a diagnostic procedure; reagents, buffers, and preparations for scientific use, namely, for modifying a probe to which biomolecules bind for diagnostic purposes