Description

2,2',7,7'-Tetra[N,n-Bis(4-Hydroxyphenyl)Amino]-9,9-Spirobifluorene CAS NO 2084812-74-6 is a high-performance, multi-functional organic compound belonging to the spirobifluorene class. This advanced material is valued for its unique electronic and photophysical properties, making it a critical component in next-generation optoelectronic devices. It is primarily sought after by research institutions and manufacturers in the organic electronics and advanced materials sectors for developing high-efficiency components.

Application

• Organic Light-Emitting Diodes (OLEDs): Serves as a high-performance hole-transporting or host material in the emissive layers of OLED displays and lighting due to its excellent charge carrier mobility and thermal stability.
• Perovskite Solar Cells (PSCs): Used as a hole-transport material (HTM) to enhance charge extraction, improve device stability, and boost the power conversion efficiency of photovoltaic cells.
• Organic Photovoltaics (OPVs): Functions as an electron donor or acceptor material in the active layer of organic solar cells, contributing to efficient light absorption and charge separation.
• Organic Field-Effect Transistors (OFETs): Employed as a semiconducting layer to facilitate high charge carrier mobility, which is essential for high-performance electronic circuits and sensors.
• Chemical Synthesis & Material Science Research: Acts as a sophisticated building block or intermediate for synthesizing novel conjugated polymers, dendrimers, and other functional organic materials.
• Electrochromic Devices: Utilized in smart windows and displays where its redox-active properties enable controllable changes in color or transparency.

Basic Information

Product Name	2,2',7,7'-Tetra[N,n-Bis(4-Hydroxyphenyl)Amino]-9,9-Spirobifluorene
CAS No.	2084812-74-6
Molecular Formula	C92H68N4O8
Molecular Weight	1333.53 g/mol
Synonyms	Spiro-TAD (derivative); 9,9'-Spirobi[9H-fluorene]-2,2',7,7'-tetrayltetrakis[N,N-bis(4-hydroxyphenyl)aniline]; Tetra(N,N-bis(4-hydroxyphenyl)amino)spirobifluorene; Spirobifluorene-based tetraarylamine; Hole transport material 2084812-74-6; OLED/Perovskite HTM; SF-TAPA-OH
EINECS	Contact for details

Quality Control

Our production of 2,2',7,7'-Tetra[N,n-Bis(4-Hydroxyphenyl)Amino]-9,9-Spirobifluorene adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity essential for optoelectronic applications. Each lot undergoes comprehensive analysis, including HPLC for purity, NMR and MS for structural confirmation, and tests for residual solvents and metals. Certificates of Analysis (COA) detailing all specifications are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This compound is easily oxidized and should be handled under an inert atmosphere (e.g., nitrogen or argon) for long-term storage and during weighing operations to maintain purity and performance. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Yellow to orange solid powder
Identification (HPLC)	Conforms
Identification (NMR)	Conforms
Purity (HPLC)	≥ 98.0% (Area %)
Loss on Drying	≤ 0.5%
Residual Solvents (GC)	Meets ICH guidelines
Heavy Metals	< 10 ppm

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