Description

2-Hydroxy-1,3,2-Benzodioxaphosphole-2-Oxide is a specialized organophosphorus compound, also known as phenylphosphonic acid cyclic ethylene ester, that serves as a key intermediate and reagent in advanced chemical synthesis. Its unique cyclic structure makes it valuable for introducing phosphorus-containing functional groups into target molecules, enabling the development of novel materials and active ingredients. This chemical is primarily sought by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and polymer sectors for applications in ligand synthesis, catalysis, and as a building block for flame retardants.

Application

• Pharmaceutical Intermediate: Used in the synthesis of novel drug candidates, particularly those targeting neurological and metabolic pathways.
• Agrochemical Synthesis: Serves as a key precursor in the development of new-generation herbicides, insecticides, and plant growth regulators.
• Ligand for Catalysis: Employed in the preparation of phosphorus-based ligands for transition metal catalysts used in cross-coupling and hydrogenation reactions.
• Polymer Modification: Acts as a monomer or additive to impart flame-retardant properties and improve thermal stability in engineering plastics and resins.
• Chemical Research: A valuable reagent in academic and industrial R&D for exploring new organophosphorus chemistry and material science.
• Coordination Chemistry: Used to synthesize metal-organic frameworks (MOFs) and complexes with specific catalytic or sensory functions.

Basic Information

Product Name	2-Hydroxy-1,3,2-Benzodioxaphosphole-2-Oxide
CAS No.	4846-23-5
Molecular Formula	C8H7O4P
Molecular Weight	198.11 g/mol
Synonyms	Phenylphosphonic Acid Cyclic Ethylene Ester; 2-Hydroxy-2-oxo-1,3,2-benzodioxaphosphole; 2-Oxo-2H-1,3,2-benzodioxaphosphole-2-ol; 1,3,2-Benzodioxaphosphole, 2-hydroxy-, 2-oxide; Ethylene Phenylphosphonate; Cyclic Ethylene Phenylphosphonate; 2-Hydroxy-2-oxido-1,3,2-benzodioxaphosphole
EINECS	225-409-1

Quality Control

Our 2-Hydroxy-1,3,2-Benzodioxaphosphole-2-Oxide is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all critical parameters. Our quality commitment ensures the material meets the high standards required for research and industrial synthesis.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept under an inert atmosphere (e.g., nitrogen or argon) in its original packaging to prevent degradation. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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