Description

2,2-Bis(4-Hydroxy-3,5-Dimethylphenyl)Propane, also known as Tetramethyl Bisphenol A (TMBPA), is a high-purity bisphenol derivative. This compound matters as a versatile and thermally stable monomer and intermediate, offering superior performance in demanding polymer applications. It is primarily needed by manufacturers in the polymer, specialty chemical, and advanced material industries for producing high-performance resins, antioxidants, and flame retardants.

Application

• Polymer Synthesis: A key monomer for producing high-performance polycarbonates, epoxy resins, and polysulfones with enhanced thermal stability and chemical resistance.
• Antioxidant Intermediate: Serves as a crucial building block in the synthesis of advanced phenolic antioxidants for plastics, rubber, and lubricants.
• Flame Retardant Formulations: Used in the development of halogen-free flame retardant systems for engineering plastics and electronic materials.
• Specialty Epoxy Curing Agents: Acts as a hardener or modifier in epoxy resin systems to improve mechanical properties and high-temperature performance.
• Photoresist Materials: Employed in the electronics industry as a raw material for advanced photoresists used in semiconductor manufacturing.
• Pharmaceutical Intermediates: Utilized in the synthesis of certain active pharmaceutical ingredients (APIs) and fine chemicals.

Basic Information

Product Name	2,2-Bis(4-Hydroxy-3,5-Dimethylphenyl)Propane
CAS No.	5613-46-7
Molecular Formula	C19H24O2
Molecular Weight	284.39 g/mol
Synonyms	Tetramethyl Bisphenol A (TMBPA); 2,2-Bis(4-hydroxy-3,5-dimethylphenyl)propane; 4,4'-(1-Methylethylidene)bis(2,6-dimethylphenol); Bisphenol TM; 2,2-Bis(3,5-dimethyl-4-hydroxyphenyl)propane; Phenol, 4,4'-(1-methylethylidene)bis[2,6-dimethyl-; NSC 403697
EINECS	227-011-6

Quality Control

Our 2,2-Bis(4-Hydroxy-3,5-Dimethylphenyl)Propane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and industry standards. 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, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents, strong acids, and strong bases. The product is light-sensitive; prolonged exposure to light should be avoided.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	155 - 160 °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.