O-Ethyl methylphosphonothioic acid
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| O-Ethyl methylphosphonothioic acid | |
|---|---|
| IUPAC name | O-ethyl hydrogen methylphosphonothioate |
| Other names | Methyl-phosphonothioic acid O-ethyl ester |
| Properties | |
| Molecular formula | C3H9O2PS |
| Molar mass | 140.14 g/mol |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
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O-Ethyl methylphosphonothioic acid (EMPTA) is a dual-purpose chemical. Although it has constructive uses in the synthesis of pesticides and pharmaceuticals, it is also a precursor in the synthesis of nerve agents such as VM and VX.

