Description

Alpha,α-Bis(p-Hydroxyphenyl)-o-Cresol is a high-purity phenolic compound of significant industrial interest. This chemical serves as a versatile intermediate and functional additive, valued for its specific molecular architecture. It is primarily utilized in the production of advanced polymers, specialty chemicals, and as a key building block in pharmaceutical synthesis. Industries requiring high-performance materials and precise chemical synthesis rely on this compound for its consistent quality and reactivity.

Application

• As a key monomer or chain extender in the synthesis of high-performance engineering plastics and polycarbonates.
• As an intermediate in the manufacture of antioxidants and stabilizers for polymers and lubricants.
• In pharmaceutical research and development as a precursor for active pharmaceutical ingredients (APIs).
• As a building block for specialty epoxy resins and advanced coating formulations.
• In the synthesis of dyes, pigments, and other fine chemicals requiring phenolic structures.
• As a cross-linking agent or curing agent in thermoset resin systems.

Basic Information

Product Name	Alpha,α-Bis(p-Hydroxyphenyl)-o-Cresol
CAS No.	51728-14-4
Molecular Formula	C20H18O3
Molecular Weight	306.36 g/mol
Synonyms	2,2'-Methylenebis(6-(4-hydroxyphenyl)-4-methylphenol); 2,2'-Methylenebis[6-(4-hydroxyphenyl)-p-cresol]; Bis(4-hydroxy-3-methyl-5-(4-hydroxyphenyl)phenyl)methane; Phenol, 2,2'-methylenebis[6-(4-hydroxyphenyl)-4-methyl-]; Antioxidant 2246-S; AO-2246S; 4,4'-Methylenebis(2,6-bis(1,1-dimethylethyl)phenol) derivative; Bisphenol derivative antioxidant.
EINECS	Contact for details

Quality Control

Our Alpha,α-Bis(p-Hydroxyphenyl)-o-Cresol is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting specifications for industrial and research use. Certificates of Analysis (COA) detailing all quality parameters are provided with every shipment to guarantee traceability and consistency.

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). Due to its sensitivity to oxidation, it is recommended to store under an inert atmosphere for long-term preservation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	155°C - 165°C
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.