Chemical solutions and preparations for scientific or research (other than diagnostic) purposes, other than for medical or veterinary use; reactants for scientific or research (other than diagnostic) use; premixed reactants for scientific or research (other than diagnostic) use; chemical reagents, other than for medical or veterinary purposes; premixed chemical reagents, other than for medical or veterinary purposes; reagents for scientific or medical research use; reagents with markers for labelling or marking biological cells and other molecules; reagents with conjugated antibodies for labelling or marking cells in biological samples; kits comprised of such chemical solutions and preparations, reactants, for reagents for scientific or research (other than diagnostic) purposes.