Description

4,4'-[(1R,2S)-1,2-Diethylethylene]Di(o-Cresol) is a chiral, sterically hindered bisphenol derivative of significant interest in advanced organic synthesis. This compound matters for its role as a sophisticated building block in the development of specialized polymers, chiral ligands, and pharmaceutical intermediates. It is needed by R&D chemists and process engineers in the fine chemical, pharmaceutical, and advanced materials sectors seeking to impart specific stereochemical and physical properties into their final products.

Application

• As a chiral monomer for the synthesis of stereoregular, high-performance polymers and resins.
• In the development of asymmetric catalysts and chiral ligands for enantioselective synthesis.
• As a key pharmaceutical intermediate in the production of active pharmaceutical ingredients (APIs) requiring specific stereochemistry.
• For research and development of liquid crystal materials and other advanced organic electronic components.
• As a stabilizer or antioxidant precursor in specialty formulations where steric hindrance is beneficial.
• In academic and industrial R&D for exploring new synthetic methodologies and material properties.

Basic Information

Product Name	4,4'-[(1R,2S)-1,2-Diethylethylene]Di(o-Cresol)
CAS No.	10465-10-8
Molecular Formula	C20H26O2
Molecular Weight	298.42 g/mol
Synonyms	1,1'-(1R,2S)-1,2-Diethyl-1,2-ethanediyl)bis[2-methylbenzene]; (1R,2S)-1,2-Diethyl-1,2-bis(2-methylphenoxy)ethane; 4,4'-(1R,2S)-1,2-Diethyl-1,2-ethanediyl)bis(2-methylphenol); Chiral Bisphenol Derivative; Sterically Hindered Bisphenol; (R,S)-Diethylstilbestrol dimethyl ether analog (structural); 2,2'-((1R,2S)-1,2-Diethylethane-1,2-diyl)bis(4-methylphenol)
EINECS	Contact for details

Quality Control

Our 4,4'-[(1R,2S)-1,2-Diethylethylene]Di(o-Cresol) is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure high chemical purity, correct stereochemistry, and consistent performance. Certificates of Analysis (COA) detailing identity, purity (HPLC/Chiral HPLC), and impurity profiles are available upon request to support your quality assurance and regulatory needs.

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 strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Chiral Purity (Chiral 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.