Description

9-Methylene-9H-Fluorene is a versatile and synthetically valuable organic compound belonging to the fluorene family, characterized by its unique exocyclic methylene group. This structural feature makes it a crucial building block and intermediate in advanced organic synthesis, particularly for constructing complex polycyclic frameworks. It is essential for research and development chemists in the pharmaceutical, agrochemical, and materials science industries seeking to develop novel compounds with specific electronic or structural properties.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel drug candidates, especially those with polycyclic aromatic structures for targeting specific biological pathways.
• Agrochemical Synthesis: Used in the development of new herbicides, fungicides, and plant growth regulators that require a fluorene-based core for enhanced activity.
• Organic Electronic Materials: Acts as a fundamental building block for creating organic semiconductors, charge-transport materials, and light-emitting compounds used in OLEDs and photovoltaic cells.
• Polymer Chemistry: Employed as a monomer or cross-linking agent to introduce rigid, aromatic units into polymer backbones, improving thermal stability and mechanical properties.
• Ligand and Catalyst Development: Utilized to synthesize specialized ligands for metal-organic complexes and catalysts used in asymmetric synthesis and polymerization reactions.
• Dye and Pigment Intermediate: Functions as a starting material for producing specialized dyes and pigments with high color fastness and specific light-absorption characteristics.
• Academic and Industrial R&D: A valuable reagent for methodological studies in organic chemistry, including cycloaddition reactions and the development of new synthetic methodologies.

Basic Information

Product Name	9-Methylene-9H-Fluorene
CAS No.	4425-82-5
Molecular Formula	C14H10
Molecular Weight	178.23 g/mol
Synonyms	9-Methylene-9H-fluorene; 9-Methylenefluorene; Fluorene, 9-methylene-; 9H-Fluorene, 9-methylene-; 9-Methylene-fluorene; 9-Methylidenefluorene; NSC 406913; 9-(Methylidene)fluorene
EINECS	224-597-2

Quality Control

Our 9-Methylene-9H-Fluorene is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are 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 area at room temperature (15-25°C). Keep away from heat, sparks, and open flames. For long-term storage, consider storing under an inert atmosphere to maintain product integrity.

Specification

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