Description

2,9-Dimethylfluorene CAS NO 21846-26-4 is a high-purity, specialized organic compound belonging to the fluorene class, characterized by its two methyl substituents at the 2 and 9 positions. This structural modification makes it a valuable intermediate and building block in advanced organic synthesis and materials science. It is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and organic electronics industries who require precise, high-quality chemical components for developing novel compounds and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the research and development of new active pharmaceutical ingredients (APIs), particularly for compounds with complex polycyclic frameworks.
• Agrochemical Synthesis: Used in the production of advanced pesticides and herbicides, where the fluorene backbone contributes to specific biological activity and stability.
• Organic Light-Emitting Diodes (OLEDs): Acts as a precursor or core structure for the synthesis of hole-transport materials, host materials, and emitters in display and lighting technologies.
• Organic Photovoltaic (OPV) Materials: Employed in the development of donor or acceptor materials for solar cells due to its tunable electronic properties.
• Ligand and Catalyst Development: Functions as a scaffold for creating sophisticated ligands used in asymmetric catalysis and transition metal complexes.
• Polymer and Material Science: Incorporated into polymers to modify thermal stability, fluorescence properties, or mechanical characteristics for high-performance plastics and coatings.
• Chemical Research & Development: A fundamental reagent in academic and industrial R&D for exploring new organic reactions and synthesizing novel chemical entities.
• Dye and Pigment Intermediate: Utilized in the synthesis of specialized dyes and pigments where the dimethylfluorene unit provides color fastness and specific light-absorption properties.

Basic Information

Item	Detail
Product Name	2,9-Dimethylfluorene
CAS No.	21846-26-4
Molecular Formula	C15H14
Molecular Weight	194.27 g/mol
Synonyms	2,9-Dimethyl-9H-fluorene; 9H-Fluorene, 2,9-dimethyl-; NSC 407319; Fluorene, 2,9-dimethyl-; 2,9-DMF
EINECS	Contact for details

Quality Control

Our 2,9-Dimethylfluorene is produced under stringent 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 established specifications. Certificates of Analysis (COA) detailing all test results are provided with every shipment and are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. For long-term storage, consider an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	95 - 99 °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.