Description

1,3,2-Dioxaphosphorinane, 2-ethoxy-, 2-oxide (CAS No. 697-39-2) is a high-purity organophosphorus compound with the molecular formula C₅H₁₁O₄P. Also known as Ethyl Trimethylene Phosphate, this cyclic phosphate ester is a versatile reagent widely used in organic synthesis, polymer chemistry, and materials science. Its IUPAC name, 2-ethoxy-1,3,2λ⁵-dioxaphosphinane 2-oxide, reflects its unique heterocyclic structure, featuring a six-membered ring with a phosphorus center. This compound is characterized by its stability, reactivity, and utility as a phosphorylating agent or flame retardant intermediate. Available in >95% purity, it is supplied in rigorously tested batches to ensure consistency for research and industrial applications. Suitable for use under inert conditions, it is packaged in amber glass vials or sealed containers to prevent degradation. Ideal for researchers exploring novel phosphorous-based materials, catalysts, or specialty chemicals.

Properties

• CAS Number: 697-39-2
• Complexity: 137
• IUPAC Name: 2-ethoxy-1,3,2lambda5-dioxaphosphinane 2-oxide
• InChI: InChI=1S/C5H11O4P/c1-2-7-10(6)8-4-3-5-9-10/h2-5H2,1H3
• InChI Key: VCRMZNSYPKGMAJ-UHFFFAOYSA-N
• Exact Mass: 166.03949583
• Molecular Formula: C5H11O4P
• Molecular Weight: 166.11
• SMILES: CCOP1(=O)OCCCO1
• Topological: 44.8
• Monoisotopic Mass: 166.03949583
• Synonyms: 697-39-2, 1,3,2-Dioxaphosphorinane, 2-ethoxy-, 2-oxide, Ethyl Trimethylene Phosphate, SCHEMBL2627461, SCHEMBL7162152, DTXSID401257658, 2-Athoxy-2-oxo-4,5-dihydro-1,3,2-dioxaphosphorin

Application

1,3,2-Dioxaphosphorinane, 2-ethoxy-, 2-oxide is primarily employed as a key intermediate in flame retardant formulations, where its cyclic phosphate structure enhances thermal stability. It also serves as a building block for synthesizing functionalized phosphonates in medicinal chemistry and agrochemical research. Additionally, this compound finds use in polymer modification, where it can improve material properties such as flame resistance or adhesion.

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