etc., influence the UDMH transformation, which leads to the fact that at the moment there is no precise understanding of what substances will be formed under certain conditions . The expansive distribution of false transformation products should be mentioned, as often the identification of new compounds belonging to transformation products is superficially performed only by the mass spectra obtained without the use of additional methods . In our work, we also observed that some compounds might not be available in databases and identification was done indirectly based on available published data .