Description

[Ar,(-)]-5,5',6,6',8,8'-Hexahydroxy-2,2'-Di(Hydroxymethyl)-9,9'-Bi[4H-Naphtho[2,3-B]Pyran]-4,4'-Dione is a complex, high-purity organic compound belonging to the class of dimeric naphthopyran derivatives. This compound matters for its role as a sophisticated chemical intermediate and research-grade building block in advanced synthetic chemistry. It is primarily needed by R&D laboratories and manufacturers in the pharmaceutical and fine chemical sectors for developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of complex, biologically active molecules for drug discovery and development programs.
• Fine Chemical Synthesis: Serves as a specialized building block for creating advanced organic compounds with specific optical or electronic properties.
• Research & Development: Used in academic and industrial research laboratories for studying novel chemical reactions, polymerization processes, or material science applications.
• Dye & Pigment Precursor: Potential use in the development of high-performance, complex organic dyes and pigments due to its polyhydroxy and conjugated structure.
• Ligand Synthesis: Can be utilized to develop novel chelating ligands for catalysis or metal-organic frameworks (MOFs).
• Polymer Chemistry: May act as a monomer or cross-linking agent for synthesizing specialty polymers with enhanced thermal or chemical resistance.

Basic Information

Item	Details
Product Name	[Ar,(-)]-5,5',6,6',8,8'-Hexahydroxy-2,2'-Di(Hydroxymethyl)-9,9'-Bi[4H-Naphtho[2,3-B]Pyran]-4,4'-Dione
CAS No.	59231-32-2
Molecular Formula	C₃₀H₂₂O₁₂
Molecular Weight	574.49 g/mol
Synonyms	5,5',6,6',8,8'-Hexahydroxy-2,2'-bis(hydroxymethyl)-9,9'-bi[4H-naphtho[2,3-b]pyran]-4,4'-dione; (-)-Bisnaphthopyran derivative; Dimeric naphthopyrandione; 9,9'-Bi(4H-naphtho[2,3-b]pyran)-4,4'-dione, 5,5',6,6',8,8'-hexahydroxy-2,2'-bis(hydroxymethyl)-, [Ar,(-)]-; 59231-32-2; Atropisomeric bis-naphthopyran; Contact for additional trade names.
EINECS	Contact for details

Quality Control

Our [Ar,(-)]-5,5',6,6',8,8'-Hexahydroxy-2,2'-Di(Hydroxymethyl)-9,9'-Bi[4H-Naphtho[2,3-B]Pyran]-4,4'-Dione is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for research and synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its hygroscopic and light-sensitive nature, the container should be kept in a desiccated environment and handled under an inert atmosphere (e.g., nitrogen or argon) for long-term storage to prevent oxidation and moisture absorption.

Specification

Item	Specification
Appearance	Yellow to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0% (Research Grade)
Water Content (KF)	≤ 2.0%
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.