Description

Sppo1 , 9,9-Spirobifluoren-2-Yl-Diphenyl-Phosphine Oxide is a high-purity, specialized organic compound that serves as a critical intermediate and functional material in advanced electronics. Its unique spirobifluorene-based molecular structure, combined with a phosphine oxide moiety, provides excellent thermal stability and electron-transport properties. This material is essential for researchers and manufacturers in the organic light-emitting diode (OLED) and organic photovoltaic (OPV) sectors, where precise molecular engineering dictates device performance and longevity.

Application

• OLED Emitter and Host Material: Used as a key component in the emissive layer of phosphorescent and thermally activated delayed fluorescence (TADF) OLEDs for displays and lighting.
• Electron Transport Layer (ETL): Functions as an efficient electron-transport material in OLED and OPV device architectures due to its favorable energy levels.
• Organic Semiconductor Synthesis: Serves as a sophisticated building block for synthesizing novel high-performance organic semiconductors.
• Phosphorescent Material Development: Acts as a ligand or core structure in the development of new phosphorescent complexes for optoelectronic applications.
• Research & Development: A vital material for academic and industrial R&D focused on next-generation organic electronic materials.

Basic Information

Product Name	Sppo1 , 9,9-Spirobifluoren-2-Yl-Diphenyl-Phosphine Oxide
CAS No.	1125547-88-7
Molecular Formula	C37H25O1P1
Molecular Weight	516.57 g/mol
Synonyms	2-(Diphenylphosphoryl)-9,9'-spirobi[fluorene]; 9,9'-Spirobi[fluorene]-2-yl-diphenylphosphine oxide; SPFO; SPPO1; 2-Diphenylphosphoryl-9,9'-spirobifluorene; Diphenyl(9,9'-spirobi[fluorene]-2-yl)phosphine oxide; (9,9'-Spirobi[fluorene]-2-yl)diphenylphosphine oxide
EINECS	Contact for details

Quality Control

Our Sppo1 is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity, critical for sensitive optoelectronic applications. We provide comprehensive Certificates of Analysis (COA) with each batch, detailing purity, identity, and impurity profiles. Our quality systems are designed to support R&D and commercial-scale manufacturing requirements, ensuring material integrity from synthesis to delivery.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed in a dry environment to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0% (Area %)
Melting Point	Contact for details
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm
Residual Solvents (GC)	Meets ICH guidelines

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