Description

2,2',7'-Tribromo-9,9'-Spirobi[9H-Fluorene] is a high-purity, brominated spirobifluorene derivative, a key advanced intermediate in the synthesis of organic electronic materials. Its value lies in its rigid, three-dimensional molecular structure and excellent electron-transport properties, which are critical for enhancing device performance and stability. This compound is essential for R&D and production teams in the organic light-emitting diode (OLED), organic photovoltaic (OPV), and specialty chemical sectors seeking to develop next-generation optoelectronic devices.

Application

• OLED Emitter and Host Material: Serves as a core building block for red, green, and blue phosphorescent and thermally activated delayed fluorescence (TADF) emitters, as well as electron-transport and host materials in display and lighting applications.
• Organic Photovoltaic (OPV) Cells: Used in the synthesis of electron-acceptor or donor materials for bulk heterojunction solar cells to improve power conversion efficiency.
• Organic Field-Effect Transistors (OFETs): Acts as a precursor for high-mobility semiconducting materials due to its planar, conjugated structure that facilitates efficient charge carrier transport.
• Chemical Synthesis Intermediate: A versatile starting material for further functionalization (e.g., Suzuki coupling, Buchwald-Hartwig amination) to create complex organic semiconductors.
• Perovskite Solar Cell Additive: Employed to modify interfaces or as a passivation agent to enhance the stability and efficiency of perovskite layers.
• Research & Development: Critical for academic and industrial R&D focused on novel organic electronic materials and device architecture exploration.

Basic Information

Product Name	2,2',7'-Tribromo-9,9'-Spirobi[9H-Fluorene]
CAS No.	171408-77-8
Molecular Formula	C25H13Br3
Molecular Weight	560.09 g/mol
Synonyms	2,2',7'-Tribromo-9,9'-spirobi[9H-fluorene]; 9,9'-Spirobi[9H-fluorene], 2,2',7'-tribromo-; Tribromospirobifluorene; 2,2',7'-Tribromospirobifluorene; SBF-Br3; Spirobifluorene tribromide; 2,7-Dibromo-9,9'-spirobi[9H-fluorene]-2'-yl bromide
EINECS	Contact for details

Quality Control

Our 2,2',7'-Tribromo-9,9'-Spirobi[9H-Fluorene] is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity, which is paramount for sensitive electronic applications. Each lot undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via NMR and Mass Spectrometry. A detailed Certificate of Analysis (COA) documenting all specifications is provided with every shipment to support your quality assurance protocols.

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). The compound is light-sensitive and should be handled under an inert atmosphere when appropriate for prolonged exposure. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (HPLC)	Conforms to reference standard
Purity (HPLC)	≥ 98.0% (Area %)
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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