Description

5,5'-Dihydroxy-7,7'-Dimethyl-2,2'-Binaphthalene-1,1',4,4'-Tetraone is a high-purity, specialized binaphthyl derivative with a complex quinone structure. This compound serves as a critical advanced intermediate for synthesizing functional dyes, pigments, and organic electronic materials. It is primarily utilized by R&D chemists and production specialists in the fine chemical, high-performance pigment, and organic semiconductor industries.

Application

• Functional Dye & Pigment Intermediate: A key precursor for the synthesis of high-value naphthalimide and perinone-type dyes and pigments, known for their vivid colors and stability.
• Organic Electronic Materials: Used in the development of organic semiconductors, charge-transport materials, and non-linear optical (NLO) materials due to its extended conjugated system.
• Ligand Synthesis for Catalysis: Serves as a backbone for constructing chiral binaphthyl ligands used in asymmetric synthesis and homogeneous catalysis.
• Analytical Chemistry & Sensors: Can be functionalized to create fluorescent probes and chemosensors for metal ion detection or biological imaging.
• Polymer Chemistry: Incorporated as a monomer or additive to impart specific optical or electronic properties to advanced polymeric materials.
• Pharmaceutical Research Intermediate: Employed in the discovery and synthesis of novel pharmacologically active compounds with quinone moieties.

Basic Information

Product Name	5,5'-Dihydroxy-7,7'-Dimethyl-2,2'-Binaphthalene-1,1',4,4'-Tetraone
CAS No.	24456-79-9
Molecular Formula	C24H14O6
Molecular Weight	398.37 g/mol
Synonyms	7,7'-Dimethyl-5,5'-dihydroxy-2,2'-binaphthalene-1,1',4,4'-tetraone; 1,1',4,4'-Tetrahydroxy-7,7'-dimethyl-2,2'-binaphthyl-5,5'-dione; 5,5'-Dihydroxy-7,7'-dimethyl-2,2'-binaphthyl-1,1',4,4'-tetraone; Dinaphtho[2,1-a:1',2'-c]fluorene-7,14-dione, 5,12-dihydroxy-2,9-dimethyl-; 2,9-Dimethyl-5,12-dihydroxydinaphtho[2,1-a:1',2'-c]fluorene-7,14-dione
EINECS	Contact for details

Quality Control

Our 5,5'-Dihydroxy-7,7'-Dimethyl-2,2'-Binaphthalene-1,1',4,4'-Tetraone 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 customer specifications. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and compliance.

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). Due to its light-sensitive nature and propensity for oxidation, it is recommended to handle under an inert atmosphere for long-term storage and to minimize exposure to air and moisture.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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