Description

9,9-Dimethylfluorene is a high-purity organic compound belonging to the class of polycyclic aromatic hydrocarbons, serving as a versatile and critical building block in advanced material synthesis. Its value lies in its rigid, planar fluorene core with methyl substituents, which enhances thermal stability and processability for high-performance applications. This compound is essential for researchers and manufacturers in the pharmaceutical, OLED (organic light-emitting diode), and specialty polymer industries, where it is used to create sophisticated intermediates and functional materials.

Application

• Pharmaceutical Intermediate: Key starting material or advanced intermediate in the synthesis of active pharmaceutical ingredients (APIs) and complex organic molecules.
• OLED Material Precursor: Used in the development of host, hole-transport, or electron-transport materials for organic light-emitting diode displays and lighting.
• Polymer & Plastic Additive: Acts as a monomer or modifier to enhance the thermal, optical, or mechanical properties of engineering plastics and high-performance polymers.
• Ligand & Catalyst Synthesis: Serves as a backbone for constructing sophisticated ligands used in catalytic systems for organic transformations.
• Organic Semiconductor Research: A fundamental material in R&D for developing novel organic electronic components and devices.
• Fluorescent Dye & Pigment Intermediate: Utilized in the synthesis of dyes, pigments, and fluorescent markers due to its conjugated aromatic structure.

Basic Information

Product Name	9,9-Dimethylfluorene
CAS No.	4569-45-3
Molecular Formula	C15H14
Molecular Weight	194.27 g/mol
Synonyms	9,9-Dimethyl-9H-fluorene; 9H-Fluorene, 9,9-dimethyl-; 2,2'-Dimethylbiphenyl; 2,2'-Dimethylbiphenyl-2,2'-diyl; 9,9-Dimethyl-9H-fluorene; Biphenyl, 2,2'-dimethyl-; Fluorene, 9,9-dimethyl-
EINECS	Contact for details

Quality Control

Our 9,9-Dimethylfluorene is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to verify identity and purity against stringent internal specifications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	97 - 101 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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