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| Names | |
|---|---|
| Preferred IUPAC name
Methylphosphonic dichloride | |
| Other names
Methanephosphonic dichloride
Methanephosphonic acid dichloride Methylphosphonyl dichloride Dichloro | |
| Identifiers | |
3D model (JSmol)
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| ChemSpider | |
| ECHA InfoCard | 100.010.578 |
| EC Number |
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PubChem CID
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| UN number | 9206 |
CompTox Dashboard (EPA)
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| Properties | |
| CH3Cl2OP | |
| Molar mass | 132.91 g·mol−1 |
| Appearance | White crystalline solid |
| Density | 1.468 g/mL at 20 °C |
| Melting point | 28 to 34 °C (82 to 93 °F; 301 to 307 K) |
| Boiling point | 163 °C (325 °F; 436 K) |
| Reacts with water | |
| Solubility | Ether, THF |
| Hazards | |
| Occupational safety and health (OHS/OSH): | |
Main hazards
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Very toxic, reacts with water |
| GHS labelling: | |
 
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| Danger | |
| H314, H330 | |
| P260, P264, P271, P280, P284, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P320, P321, P363, P403+P233, P405, P501 | |
| Flash point | >110 °C |
| Lethal dose or concentration (LD, LC): | |
LD50 (median dose)
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26 ppm/4h by inhalation (rat) |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Methylphosphonyl dichloride (DC) or dichloro is an organophosphorus compound. It has commercial application in oligonucleotide synthesis,[1] but is most notable as being a precursor to several chemical weapons agents. It is a white crystalline solid that melts slightly above room temperature.[2]
- ^ Aldrich Handbook & Catalog of Fine Chemicals. Milwaukee, WI: Aldrich Chemical Company. 1994. p. 871. As cited in HSDB.
- ^ "SAFETY DATA SHEET Methylphosphonic dichloride". SAFETY DATA SHEET Methylphosphonic dichloride. MilliporeSigma. June 26, 2020. Retrieved April 27, 2022.