Description

S-3,3'-Bis(4-Methylphenyl-1,1'-Bi-2-Naphthol (CAS NO 885670-60-0) is a high-purity, chiral binaphthol derivative that serves as a critical ligand and building block in asymmetric synthesis. Its value lies in its ability to impart exceptional stereoselectivity in catalytic reactions, enabling the production of enantiomerically pure intermediates. This compound is essential for research and development chemists in the pharmaceutical, agrochemical, and advanced materials sectors who require precise chiral control.

Application

• As a chiral ligand for transition metal catalysts in asymmetric hydrogenation, coupling, and cycloaddition reactions.
• As a key precursor in the synthesis of novel chiral phosphoric acids and other organocatalysts.
• In the research and development of active pharmaceutical ingredients (APIs) requiring specific stereochemistry.
• For the preparation of chiral stationary phases used in high-performance liquid chromatography (HPLC) for enantiomer separation.
• As a building block for advanced functional materials, such as chiral polymers and liquid crystals.
• In agrochemical research for creating enantiomerically pure herbicides and pesticides.

Basic Information

Product Name	S-3,3'-Bis(4-Methylphenyl-1,1'-Bi-2-Naphthol
CAS No.	885670-60-0
Molecular Formula	C34H26O2
Molecular Weight	466.57 g/mol
Synonyms	(S)-3,3'-Bis(4-methylphenyl)-[1,1'-binaphthalene]-2,2'-diol; (S)-3,3'-Di-p-tolyl-1,1'-bi-2-naphthol; (S)-DTB-BINOL; (S)-3,3'-Bis(p-tolyl)-BINOL; S-BINOL derivative; Chiral binaphthol ligand; Axially chiral diol; Contact for details on additional trade names.
EINECS	Contact for details

Quality Control

Our S-3,3'-Bis(4-Methylphenyl-1,1'-Bi-2-Naphthol is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chiral purity assessment by HPLC, to ensure compliance with exacting R&D and process chemistry standards. A comprehensive Certificate of Analysis (COA) detailing purity, enantiomeric excess, and identity is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). This material is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Enantiomeric Excess (HPLC)	≥ 99.0% ee
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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