Description

4,4'-Bi[1-Naphthol] (CAS NO 1446-34-0) is a high-purity organic compound belonging to the class of binaphthol derivatives, valued for its rigid, chiral backbone and functional hydroxyl groups. This compound matters as a critical chiral ligand and building block in asymmetric synthesis, enabling the production of enantiomerically pure pharmaceuticals and advanced materials. It is primarily needed by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors for catalyst development and fine chemical synthesis.

Application

• As a chiral ligand in asymmetric catalysis for pharmaceutical intermediate synthesis.
• Building block for the preparation of chiral phosphoric acid catalysts.
• Key intermediate in the synthesis of functional polymers and advanced organic materials.
• Precursor for chiral stationary phases used in analytical chromatography.
• Research and development of novel metal-organic frameworks (MOFs).
• Use in agrochemical research for creating enantioselective compounds.

Basic Information

Product Name	4,4'-Bi[1-Naphthol]
CAS No.	1446-34-0
Molecular Formula	C₂₀H₁₄O₂
Molecular Weight	286.32 g/mol
Synonyms	1,1'-Binaphthalene-4,4'-diol; 4,4'-Dihydroxy-1,1'-binaphthyl; (R)-(+)-1,1'-Bi-2-naphthol (racemic form); BINOL derivative; 4,4'-Bi-1-naphthol; 4,4'-Bis(1-naphthol); 1,1'-Binaphthyl-4,4'-diol
EINECS	215-901-8

Quality Control

Our 4,4'-Bi[1-Naphthol] is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and chiral analysis, to ensure it meets the high standards required for research and industrial applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and specific impurities is provided with every shipment.

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). Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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