A-242

A-242
Names
	IUPAC name methyl-(bis(diethylamino)methylene)phosphonamidofluoridate
	Systematic IUPAC name 1,1,3,3-tetraethyl-2-[fluoro(methyl)phosphoryl]guanidine
Identifiers
CAS Number	2387496-14-0 ;
3D model (JSmol)	Interactive image;
PubChem CID	146586254;
	InChI InChI=1S/C10H23FN3OP/c1-6-13(7-2)10(12-16(5,11)15)14(8-3)9-4/h6-9H2,1-5H3 Key: WJDIQLITBJEMBA-UHFFFAOYSA-N;
	SMILES CCN(CC)C(=N[P](C)(F)=O)N(CC)CC;
Properties
Chemical formula	C10H23FN3OP
Molar mass	251.286 g·mol−1
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

A-242 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. Mirzayanov gives little specific information about A-242, stating that it is highly toxic but no figures are given to compare it to other related agents. It is reportedly a solid rather than a volatile liquid as with most nerve agents, and in order to weaponise it successfully, it had to be milled into a fine powder form that could be dispersed as a dust.

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