Description

2,5,5-Trimethyl-1,3,2-Dioxaphosphorinane 2-Oxide is a specialized organophosphorus compound, a cyclic phosphonate ester, known for its unique structure and reactivity. This chemical serves as a valuable intermediate and building block in advanced organic synthesis, particularly in the development of flame retardants, plasticizers, and functional materials. It is essential for R&D chemists and production specialists in the polymer, agrochemical, and pharmaceutical industries seeking to modify material properties or create novel molecular architectures.

Application

• Flame Retardant Synthon: A key phosphorus-containing intermediate for synthesizing high-efficiency, halogen-free flame retardants used in engineering plastics, polyurethane foams, and textiles.
• Polymer Additive Precursor: Used to manufacture phosphonate-based plasticizers and stabilizers that enhance the flexibility, thermal stability, and durability of PVC and other polymers.
• Ligand and Catalyst Component: Employed in coordination chemistry and catalysis due to its ability to act as a ligand for various metal centers, facilitating organic transformations.
• Agrochemical Intermediate: Serves as a building block in the synthesis of certain herbicides, plant growth regulators, and other active ingredients.
• Pharmaceutical Research: Investigated as a precursor or analog in medicinal chemistry for developing compounds with potential biological activity.
• Electrolyte Additive: Explored for use in lithium-ion battery electrolytes to improve thermal stability and cycle life.

Basic Information

Product Name	2,5,5-Trimethyl-1,3,2-Dioxaphosphorinane 2-Oxide
CAS No.	873-97-2
Molecular Formula	C6H13O3P
Molecular Weight	164.14 g/mol
Synonyms	2-Oxo-2,5,5-trimethyl-1,3,2-dioxaphosphorinane; 2,5,5-Trimethyl-2-oxo-1,3,2-dioxaphosphorinane; NSC 163082; Phosphonic acid, P,P-dimethyl-, cyclic methyl 2-propyl ester; Cyclic methyl 2-propyl P,P-dimethylphosphonate
EINECS	212-851-5

Quality Control

Our production of 2,5,5-Trimethyl-1,3,2-Dioxaphosphorinane 2-Oxide adheres to strict quality management protocols. Each batch undergoes rigorous analytical testing, including chromatography and spectroscopy, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing specific batch results are provided and available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. The container should be kept tightly closed in a dry and well-ventilated place.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.440 - 1.450
Density (20°C)	1.15 - 1.25 g/cm³

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.