Description

9H-Fluorene-2,7-Diamine, 9,9-Dimethyl-N2,N7-Bis(3-Methylphenyl)-N2,N7-Diphenyl- is a high-purity, functionalized diamine derivative of 9,9-dimethylfluorene, designed for advanced material synthesis. This compound matters for its role as a critical building block in the development of high-performance polymers and organic electronic materials, where its specific substitution pattern dictates key material properties. It is primarily needed by R&D chemists and production specialists in the organic light-emitting diode (OLED), photoresist, and specialty polymer industries seeking to enhance thermal stability and charge transport characteristics.

Application

• OLED Materials: Serves as a core precursor for hole-transporting materials (HTMs) and host materials in emissive layers.
• Advanced Polymer Synthesis: Used as a monomer for constructing polyimides, polyamides, and other high-temperature engineering plastics with enhanced solubility and optical clarity.
• Photoresist & Photopolymer Formulations: Incorporated as a photoactive compound or cross-linking agent in advanced lithography materials for semiconductor manufacturing.
• Organic Semiconductor Research: A key intermediate in the development of novel small-molecule and polymeric semiconductors for thin-film transistors (TFTs).
• Liquid Crystal Materials: Utilized in the synthesis of fluorene-based mesogens for display applications.
• Dye & Pigment Intermediates: Acts as a starting material for creating specialized fluorescent dyes and pigments.

Basic Information

Product Name	9H-Fluorene-2,7-Diamine, 9,9-Dimethyl-N2,N7-Bis(3-Methylphenyl)-N2,N7-Diphenyl-
CAS No.	143886-11-7
Molecular Formula	C43H38N2
Molecular Weight	582.78 g/mol
Synonyms	N2,N7-Bis(3-methylphenyl)-9,9-dimethyl-N2,N7-diphenyl-9H-fluorene-2,7-diamine; 2,7-Bis[bis(3-methylphenyl)amino]-9,9-dimethylfluorene; 9,9-Dimethyl-N2,N7-bis(3-methylphenyl)-N2,N7-diphenyl-9H-fluorene-2,7-diamine; 2,7-Bis[N,N-bis(m-tolyl)amino]-9,9-dimethylfluorene; 9,9-Dimethyl-2,7-bis[N,N-di(m-tolyl)amino]fluorene; Fluorene-based diamine derivative; m-MTDABF; Contact for additional trade names.
EINECS	Contact for details

Quality Control

Our 9H-Fluorene-2,7-Diamine derivative is manufactured under strict quality management protocols to ensure batch-to-batch consistency and high purity, essential for sensitive electronic applications. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles. We support compliance with relevant industry frameworks and can provide material tailored to specific research or production-grade specifications upon request.

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 easily oxidized and light-sensitive; prolonged exposure to air or light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	White to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0% (Area %)
Melting Point	Contact for details
Heavy Metals	< 10 ppm
Residual Solvents (GC)	Meets ICH guidelines
Loss on Drying	< 0.5%

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