O-ETHYL METHYLPHOSPHONOTHIOATE
Synonym(s):EMPSH;EMPTA
- CAS NO.：18005-40-8
- Empirical Formula: C3H9O2PS
- Molecular Weight: 140.14
- MDL number: MFCD00274635
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 05:25:30
What is O-ETHYL METHYLPHOSPHONOTHIOATE?
The Uses of O-ETHYL METHYLPHOSPHONOTHIOATE
Precursor to chemical warfare agents.
Definition
ChEBI: Methylphosphonothioic acid o-ethyl ester is an organothiophosphorus compound.
Synthesis Reference(s)
Journal of the American Chemical Society, 81, p. 148, 1959 DOI: 10.1021/ja01510a034
Properties of O-ETHYL METHYLPHOSPHONOTHIOATE
| Boiling point: | 73 °C1 mm Hg(lit.) |
| Density | 1.18 g/mL at 25 °C(lit.) |
| refractive index | n |
| Flash point: | 225 °F |
| solubility | Chloroform (Slightly), Methanol (Slightly) |
| form | Oil |
| pka | 3.87±0.10(Predicted) |
| color | Colourless |
| Merck | 13,3596 |
| Stability: | Hygroscopic, Moisture Sensitive |
Safety information for O-ETHYL METHYLPHOSPHONOTHIOATE
| Signal word | Danger |
| Pictogram(s) |
 Corrosion Corrosives GHS05  Skull and Crossbones Acute Toxicity GHS06 |
| GHS Hazard Statements |
H314:Skin corrosion/irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P270:Do not eat, drink or smoke when using this product. P280:Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for O-ETHYL METHYLPHOSPHONOTHIOATE
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