Diethyl (trichloromethyl)phosphonate

For research use only. Not for therapeutic Use.

  • CAT Number: L007044
  • CAS Number: 866-23-9
  • Molecular Formula: C5H10Cl3O3P
  • Molecular Weight: 255.5
  • Purity: ≥95%
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Diethyl (trichloromethyl)phosphonate(Cat No.:L007044), is an organophosphorus compound containing two ethyl groups (C2H5) and a trichloromethyl group (CCl3) attached to a phosphorus atom. It is a clear, colorless liquid and is widely used as a versatile intermediate in organic synthesis. This compound participates in various reactions, such as the Michael reaction and the Horner-Wadsworth-Emmons reaction, making it valuable in the preparation of complex organic molecules, including pharmaceuticals, agrochemicals, and flame retardants. Diethyl (trichloromethyl)phosphonate’s reactivity and ability to introduce phosphorus functionalities make it essential in the field of organic chemistry, enabling the creation of diverse and structurally intricate compounds.


Catalog Number L007044
CAS Number 866-23-9
Molecular Formula C5H10Cl3O3P
Purity ≥95%
Storage 2-8°C
IUPAC Name 1-[ethoxy(trichloromethyl)phosphoryl]oxyethane
InChI InChI=1S/C5H10Cl3O3P/c1-3-10-12(9,11-4-2)5(6,7)8/h3-4H2,1-2H3
InChIKey RVAQSYWDOSHWGP-UHFFFAOYSA-N
SMILES CCOP(=O)(C(Cl)(Cl)Cl)OCC

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