Chemical and biochemical preparations for scientific research use and for bioproduction in the fields of genetics, diagnosis and therapeutic molecules, the transfer of biological molecules into living cells, integration of foreign nucleic acids into the genome of living cells and the production of transfected cells, cell lines, recombinant proteins, macromolecules, biological products, peptides, antibodies, viruses and/or pseudo-viral particles; chemical and biochemical preparations, agents, reagents for scientific research in the nature of cell lines, transfection reagents, culture media, cell culture reagents with or without serum; chemical and biochemical test kits for scientific research containing gene expression preparations, agents, reagents.