Description

1,1′-Binaphthalene, 4,4′-Dibromo- CAS NO 49610-35-7 is a high-purity, functionalized binaphthyl derivative that serves as a critical chiral building block and ligand precursor in advanced organic synthesis. Its value lies in its rigid, atropisomeric structure, which is essential for creating asymmetric environments in catalytic systems and functional materials. This compound is primarily needed by research institutions and industrial R&D departments focused on pharmaceuticals, agrochemicals, and materials science, where precise molecular architecture dictates performance.

Application

• Chiral Ligand Synthesis: A key precursor for synthesizing BINOL and BINAP-type ligands used in asymmetric catalysis (e.g., hydrogenation, coupling reactions).
• Pharmaceutical Intermediates: Serves as a sophisticated scaffold in the development of active pharmaceutical ingredients (APIs) requiring axial chirality.
• Advanced Material Development: Used in the creation of organic semiconductors, liquid crystals, and polymers with specific optical or electronic properties.
• Agrochemical Research: Employed as a building block for novel, high-efficacy crop protection agents.
• Academic & Industrial R&D: A valuable tool for chemists exploring new synthetic methodologies and catalytic processes.

Basic Information

Product Name	1,1′-Binaphthalene, 4,4′-Dibromo-
CAS No.	49610-35-7
Molecular Formula	C₂₀H₁₂Br₂
Molecular Weight	412.12 g/mol
Synonyms	4,4'-Dibromo-1,1'-binaphthyl; 4,4'-Dibromo-1,1'-binaphthalene; 4,4'-Dibromobiphenyl; 4,4'-Dibromo[1,1'-binaphthalene]; BINOL Dibromo Derivative; 4,4'-Dibromobinaphthyl; 1,1'-Binaphthyl-4,4'-dibromide
EINECS	Contact for details

Quality Control

Our 1,1′-Binaphthalene, 4,4′-Dibromo- is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods, to ensure it meets the high standards required for research and development applications. 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, well-ventilated area at a controlled room temperature (15-25°C). Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Heavy Metals	< 20 ppm
Residual Solvents	Complies with ICH guidelines

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