Toxicity of VX Degradation Products

VX is less volatile than the G-agents and is resistant to hydrolysis. Degradation of VX can occur by several different pathways [18, 79-821. There are over 30 degradation products of VX [18, 79-86], but one of the major and well known degradation products is S-(2-diisopropylamin-oethyl) methylphosphonothioic acid (or EA 2192), which is highly soluble in water and possesses toxic properties similar to those of the parent compound. Other common degradation products of VX include ethyl 

Compound LD50 or LC50 LDlo or LClo Additional effects 

Methylphosphonic acid (MPA) Rat oral, 5000mgkg [46] Mouse oral, 5000mgkg [46] - Human skin and eye irritant [47] 

Methyl Mouse rat, Mutagenicity positive. Rat inhalation. Human contact 

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