Description

(R)-3,3'-Dimethyl-1,1'-Binaphthalene-2,2'-Diol is a high-value, enantiomerically pure binaphthol derivative that serves as a privileged chiral ligand and building block in asymmetric synthesis. Its core value proposition lies in its ability to induce high stereoselectivity in catalytic reactions, which is critical for producing single-enantiomer pharmaceuticals and fine chemicals. This compound is essential for research and production chemists in the pharmaceutical, agrochemical, and advanced materials sectors who require reliable, high-purity chiral auxiliaries.

Application

• As a chiral ligand in asymmetric metal-catalyzed reactions, including hydrogenation, coupling, and oxidation.
• As a precursor for synthesizing chiral phosphoric acid catalysts used in organocatalysis.
• As a resolving agent for the separation of racemic mixtures.
• In the research and development of novel pharmaceutical intermediates and active pharmaceutical ingredients (APIs).
• As a building block for chiral polymers and advanced materials with optical properties.
• In the synthesis of chiral ligands for use in asymmetric Lewis acid catalysis.

Basic Information

Product Name	(R)-3,3'-Dimethyl-1,1'-Binaphthalene-2,2'-Diol
CAS No.	55515-99-6
Molecular Formula	C22H18O2
Molecular Weight	314.38 g/mol
Synonyms	(R)-3,3'-Dimethyl-2,2'-dihydroxy-1,1'-binaphthyl; (R)-3,3'-Dimethyl-BINOL; (R)-3,3'-Dimethyl-1,1'-bi-2-naphthol; (R)-3,3'-Dimethyl-[1,1'-binaphthalene]-2,2'-diol; (R)-3,3'-Dimethyl-2,2'-dihydroxy-1,1'-binaphthalene; (R)-DM-BINOL; (R)-3,3'-Dimethylbinaphthol
EINECS	Contact for details

Quality Control

Our (R)-3,3'-Dimethyl-1,1'-Binaphthalene-2,2'-Diol is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chiral HPLC for enantiomeric excess (ee) determination, to ensure compliance with high-purity standards for research and industrial use. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and chiral purity is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry place at 15-25°C. This compound is light-sensitive and easily oxidized; prolonged exposure to air and light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Enantiomeric Excess (Chiral HPLC)	≥ 99.0% ee
Melting Point	Contact for details
Loss on Drying	≤ 0.5%

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