Novichok: What Do We Know?

... substances and four deuterated analogues (with deuterium used instead of hydrogen for a more detailed study of the substance’s structure). The Iranians analyzed the substances using chromatography-mass spectrometry and sent the mass-spectra to the OPCW. This activity was most likely covered by the CWC, but it indicates that manufacturing such substances is not difficult. It also means that other countries may possess Novichok-type substances. There are reasons to believe that the Iranians were not the only ones to synthesize the substance, and ...