Description

2,7-Diethynyl-9H-Fluorene is a high-purity, functionalized fluorene derivative of significant interest in advanced materials science. This compound serves as a critical building block (monomer) for the synthesis of conjugated polymers and organic semiconductors. It is essential for researchers and manufacturers in the organic electronics, photonics, and specialty polymer industries who require precise molecular control for developing next-generation materials.

Application

• Organic Light-Emitting Diodes (OLEDs): A key monomer for synthesizing electroluminescent polymers and small molecules used in display and lighting technologies.
• Organic Photovoltaics (OPVs/Solar Cells): Used to construct donor or acceptor materials in the active layer for efficient light absorption and charge transport.
• Conductive Polymers & Electronic Materials: Serves as a precursor for creating polymers with tailored electronic properties for sensors, transistors, and flexible electronics.
• Metal-Organic Frameworks (MOFs): Acts as a functional organic linker to create porous materials with specific optical or electronic functionalities.
• Cross-coupling Reactions (e.g., Sonogashira): The terminal alkyne groups make it a valuable reagent in palladium-catalyzed coupling reactions to build complex molecular architectures.
• Advanced Material Research: Fundamental research into novel π-conjugated systems, liquid crystals, and nonlinear optical (NLO) materials.

Basic Information

Product Name	2,7-Diethynyl-9H-Fluorene
CAS No.	94463-11-3
Molecular Formula	C₁₇H₁₀
Molecular Weight	214.26 g/mol
Synonyms	9H-Fluorene, 2,7-diethynyl-; 2,7-Diethynylfluorene; 2,7-Bis(ethynyl)fluorene; 2,7-Diethynyl-9H-fluorene; Fluorene-2,7-diylethynyl; 2,7-Diethynyl-9H-fluoren-9-one (precursor-related); DE-Fluorene; Contact for additional synonyms.
EINECS	Contact for details

Quality Control

Our 2,7-Diethynyl-9H-Fluorene is produced under controlled conditions to ensure batch-to-batch consistency and high purity, meeting the stringent requirements of material science and pharmaceutical intermediate applications. Each lot is supported by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles. We adhere to a robust quality management system, and specifications can be aligned with customer-specific research or production needs.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry place at room temperature (15-25°C). This compound is easily oxidized and light-sensitive; prolonged exposure to air or light should be avoided to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0% (Area %)
Melting Point	Contact for details
Heavy Metals	< 20 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.