Description

4-Cyano-9-Fluorenone is a high-purity, versatile organic intermediate characterized by its fluorenone core functionalized with a cyano group. This compound matters for its role as a critical building block in the synthesis of advanced materials and specialty chemicals, where its specific molecular architecture enables precise electronic and structural modifications. It is needed by researchers and manufacturers in the pharmaceutical, agrochemical, and organic electronics industries for applications ranging from drug discovery to the development of organic semiconductors and dyes.

Application

• As a key pharmaceutical intermediate in the synthesis of novel active pharmaceutical ingredients (APIs).
• In organic electronics research for the development of n-type organic semiconductors and electron-transport materials.
• As a precursor for synthesizing functional dyes, pigments, and photoinitiators used in coatings and imaging technologies.
• In agrochemical research for creating new molecules with potential herbicidal or insecticidal activity.
• As a versatile building block in academic and industrial R&D for exploring new chemical entities and reaction pathways.
• For the preparation of ligands and complexes in catalysis and materials science.

Basic Information

Product Name	4-Cyano-9-Fluorenone
CAS No.	4269-20-9
Molecular Formula	C14H7NO
Molecular Weight	205.21 g/mol
Synonyms	9-Fluorenone-4-carbonitrile; 4-Cyanofluoren-9-one; 9-Oxo-9H-fluorene-4-carbonitrile; 4-CNF; 4-Cyanofluorenone; 4-Cyano-9H-fluoren-9-one; 4-Cyano-9-oxofluorene
EINECS	Contact for details

Quality Control

Our 4-Cyano-9-Fluorenone, 99.5+% is produced under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC and NMR, to ensure it meets the declared high-purity specification and is free from significant impurities. Certificates of Analysis (COA) detailing purity, identity, and related substances are available upon request for full traceability and quality assurance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to minimize exposure to atmospheric humidity.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 99.5%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 0.5%

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