Description

9,9-Bis(4-Hydroxyphenyl)Fluorene is a high-purity bisphenol derivative and a key monomer in the synthesis of advanced polymeric materials. Its rigid fluorene core and dual phenolic hydroxyl groups make it a critical building block for creating polymers with exceptional thermal stability, optical clarity, and mechanical strength. This compound is essential for manufacturers in the high-performance plastics, specialty epoxy resins, and advanced electronics sectors seeking to enhance material properties.

Application

• Polycarbonate & Polyester Copolymers: Serves as a comonomer to improve heat resistance, transparency, and dimensional stability in engineering plastics.
• Epoxy Resin Systems: Used as a curing agent or modifier to produce high-performance, thermally stable coatings, adhesives, and composite matrices.
• Optical Materials: A key precursor for polymers used in lenses, optical films, and waveguides due to its ability to confer high refractive index and low birefringence.
• Electronic Encapsulants & Photoresists: Employed in formulations for semiconductor packaging and photolithography where purity and thermal properties are critical.
• Flame Retardant Additives: Acts as a reactive intermediate in the synthesis of halogen-free flame retardants for polymers.
• Pharmaceutical Intermediates: Utilized in the synthesis of complex organic molecules for pharmaceutical research and development.

Basic Information

Product Name	9,9-Bis(4-Hydroxyphenyl)Fluorene
CAS No.	3236-71-3
Molecular Formula	C25H18O2
Molecular Weight	350.41 g/mol
Synonyms	Bis(4-hydroxyphenyl)fluorene; 9,9-Bis(4-hydroxyphenyl)fluorene; 9H-Fluorene-9,9-diylbis(4,1-phenylene) dimethanol (tautomer); BHPF; 4,4'-(9H-Fluorene-9,9-diyl)diphenol; 4,4'-(Fluoren-9-ylidene)diphenol; 9,9-Bis(4'-hydroxyphenyl)fluorene; Bisphenol Fluorene
EINECS	221-800-2

Quality Control

Our 9,9-Bis(4-Hydroxyphenyl)Fluorene is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting standards for high-performance applications. Certificates of Analysis (COA) detailing purity, moisture content, and specific impurity profiles are available upon request 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 a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure containers are sealed immediately after use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	220 - 225 °C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm
Residue on Ignition	≤ 0.1%

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