Description

3,3',4,4'-Tetramethylbiphenyl is a high-purity, synthetic organic compound belonging to the class of alkylated biphenyls. This specialty chemical serves as a critical advanced intermediate and building block in the synthesis of complex molecules for high-tech applications. It is primarily utilized by R&D laboratories and industrial manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs) and complex organic molecules.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators.
• Liquid Crystal & OLED Materials: Serves as a core structural unit in the development of liquid crystal displays (LCDs) and organic light-emitting diode (OLED) materials.
• Polymer & Resin Modifier: Acts as a monomer or additive to enhance the thermal and mechanical properties of specialty polymers and epoxy resins.
• Organic Synthesis & R&D: A versatile reagent in academic and industrial research for constructing complex polycyclic aromatic systems.
• Dye & Pigment Manufacturing: Intermediate in the production of high-performance dyes and organic pigments.

Basic Information

Product Name	3,3',4,4'-Tetramethylbiphenyl
CAS No.	4920-95-0
Molecular Formula	C16H18
Molecular Weight	210.32 g/mol
Synonyms	3,3',4,4'-Tetramethyl-1,1'-biphenyl; 1,1'-Biphenyl, 3,3',4,4'-tetramethyl-; Tetramethylbiphenyl; Durene Biphenyl; 3,3',4,4'-Tetramethylbiphenyl; TMBP; 3,3',4,4'-Tetramethyl-diphenyl
EINECS	225-540-9

Quality Control

Our 3,3',4,4'-Tetramethylbiphenyl is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and batch-to-batch consistency. Certificates of Analysis (COA) detailing all specifications are provided and available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, 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
Assay (HPLC)	≥ 98.0%
Melting Point	165 - 170 °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.