a-230 a-230 a-230 is an organophosphate nerve agent. it was developed in the soviet union under the foliant program and is one of the group of compounds referred to as novichok agents that were revealed by vil mirzayanov. a-230 is possibly the most potent nerve agent for which specific toxicity figures have been published, with a human lethal dose estimated to be less than 0.1 mg. however it was felt to be less suitable for weaponisation than other agents such as a-232 and a-234, due to issues with the liquid agent exhibiting low volatility and solidifying at low temperatures, as well as poor stability in the presence of water. a-230 names iupac name methyl-(1-(diethylamino)ethylidene)phosphonamidofluoridate identifiers cas number 2387496-12-8 n 3d model (jsmol) interactive image chebi chebi:140423 chemspider 64808785 y pubchem cid 132472359 comptox dashboard (epa) dtxsid90896939 inchi inchi=1/c7h16fn2op/c1-5-10(6-2)7(3)9-12(4,8)11/h5-6h2,1-4h3key: oujdiwhryqbzsr-uhfffaoyna-n smiles ccn(cc)c(c)=n(c)(f)=o properties chemical formula c7h16fn2op molar mass 194.190 g·mol−1 except where otherwise noted, data are given for materials in their standard state (at 25 °c , 100 kpa). infobox references legal status a-230 has been added to schedule 1 of the annex on chemicals of the chemical weapons convention as of june 2020, and it has been explicitly named as an example compound for schedule 1.a.13. for chemicals listed in schedule 1, the most stringent declaration and verification measures are in place combined with far-reaching limits and bans on production and use. it is notable to say that annex 1 does not explicitly relate this structure to the name a-230, just add this particular structure to the prohibited compounds section.