Description

Spiro[5H-Dibenzophosphole-5,8'-[2H,3H][1,2]Oxaphospholo[4,3,2-Hi][2,1]Benzoxaphosphole] is a complex, multi-cyclic organophosphorus compound that serves as a sophisticated chemical building block. Its intricate spirocyclic structure makes it a valuable intermediate for synthesizing advanced materials and specialty chemicals. This compound is primarily sought by research institutions and industrial R&D departments focused on developing novel flame retardants, ligands for catalysis, and high-performance polymers.

Application

• Flame Retardant Synthon: A key precursor in the synthesis of novel, high-efficiency phosphorus-based flame retardants for engineering plastics and epoxy resins.
• Catalyst Ligand Development: Used in organometallic chemistry to create specialized ligands for transition metal catalysts, potentially enhancing selectivity in asymmetric synthesis.
• Advanced Material Research: Serves as a building block for novel organic electronic materials, such as host materials for OLEDs or charge-transport materials.
• Pharmaceutical Intermediate: Employed in medicinal chemistry research for the construction of complex molecular architectures with potential biological activity.
• Polymer Modification: Incorporated into polymer backbones to impart unique thermal, mechanical, or optical properties to specialty coatings and films.

Basic Information

Product Name	Spiro[5H-Dibenzophosphole-5,8'-[2H,3H][1,2]Oxaphospholo[4,3,2-Hi][2,1]Benzoxaphosphole]
CAS No.	65930-87-2
Molecular Formula	C24H15O2P2
Molecular Weight	412.33 g/mol
Synonyms	Spirodibenzophosphole-oxaphospholobenzoxaphosphole; 5H-Dibenzophosphole, 5,8'-dihydro-5,8'-spirobi[2H,3H-[1,2]oxaphospholo[4,3,2-hi][2,1]benzoxaphosphole]; Spirobi(dibenzophosphole oxide); CAS 65930-87-2; Organophosphorus Spiro Compound; Phosphorus Heterocycle Spiro Dimer
EINECS	Contact for details

Quality Control

Our production of Spiro[5H-Dibenzophosphole-5,8'-[2H,3H][1,2]Oxaphospholo[4,3,2-Hi][2,1]Benzoxaphosphole] adheres to strict in-process controls to ensure batch-to-batch consistency and high purity. Each lot is fully characterized using advanced analytical techniques, including NMR and HPLC, to confirm identity and purity. Certificates of Analysis (COA) detailing all specifications are provided with every shipment. We support custom synthesis and can tailor purity grades to meet specific research or pre-commercial application requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong oxidizing agents. For long-term storage, consider an inert atmosphere to maintain stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 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.