Description

2-Ethynyl-9,9-Dimethyl-9H-Fluorene is a high-purity, advanced organic intermediate characterized by its fluorene backbone and terminal alkyne functionality. This compound is crucial for the synthesis of complex organic molecules, particularly in materials science and pharmaceutical research, where its rigid structure and reactive site enable precise molecular construction. It is primarily sought by R&D chemists and process development scientists in the fields of organic electronics, polymer chemistry, and medicinal chemistry for creating novel functional materials and active pharmaceutical ingredients (APIs).

Application

• Organic Light-Emitting Diodes (OLEDs): Serves as a key building block for electron-transport materials and host materials in display and lighting technologies.
• Pharmaceutical Intermediates: Used in the synthesis of complex drug candidates, leveraging its fluorene scaffold for biological activity modulation.
• Polymer Chemistry: Acts as a monomer or cross-linking agent in the production of specialty polymers with tailored optical or electronic properties.
• Material Science Research: Employed in the development of novel organic semiconductors, liquid crystals, and photovoltaic materials.
• Click Chemistry: The terminal alkyne group makes it an ideal substrate for copper-catalyzed azide-alkyne cycloaddition (CuAAC) reactions, facilitating bioconjugation and polymer functionalization.
• Ligand Synthesis: Used to prepare sophisticated ligands for catalysis and metal-organic frameworks (MOFs).

Basic Information

Item	Details
Product Name	2-Ethynyl-9,9-Dimethyl-9H-Fluorene
CAS No.	876726-86-2
Molecular Formula	C₁₇H₁₄
Molecular Weight	218.30 g/mol
Synonyms	9,9-Dimethyl-2-ethynyl-9H-fluorene; 2-Ethynyl-9,9-dimethylfluorene; 9H-Fluorene, 2-ethynyl-9,9-dimethyl-; DMFL-ALK; Fluorene-2-ethynyl-9,9-dimethyl derivative
EINECS	Contact for details

Quality Control

Our 2-Ethynyl-9,9-Dimethyl-9H-Fluorene is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC, GC, NMR, and FTIR, to ensure high chemical purity and structural integrity. We provide a detailed Certificate of Analysis (COA) with each shipment, confirming compliance with agreed specifications. Our quality commitment supports applications in GMP-grade pharmaceutical development and high-performance material synthesis.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at a controlled room temperature (15-25°C) in a cool, dry, and well-ventilated place. This material is light-sensitive and easily oxidized; prolonged exposure to air and 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%
Melting Point	Contact for details
Heavy Metals	< 10 ppm
Residual Solvents (GC)	Complies with ICH guidelines

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