Description

[1,1'-Biphenyl]-4,4'-Diamine, 2,2',6,6'-Tetramethyl- is a high-purity, tetramethyl-substituted biphenyl diamine derivative. This compound serves as a critical advanced intermediate for the synthesis of high-performance polymers and specialty chemicals. It is essential for manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors requiring precise molecular building blocks.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs) and complex organic molecules.
• Polymer Chemistry: Monomer for producing high-temperature resistant polyimides, polyamides, and other specialty polymers.
• Agrochemical Synthesis: Building block for developing advanced herbicides, fungicides, and plant growth regulators.
• Liquid Crystal & OLED Materials: Core component in the manufacture of electron-transport materials and alignment layers for display technologies.
• Dye & Pigment Industry: Intermediate for creating high-stability, complex organic dyes and pigments.
• Cross-linking Agent: Used in epoxy resin systems and other thermosetting polymers to enhance mechanical and thermal properties.
• Research & Development: Valuable reagent for organic synthesis and material science research in academic and industrial laboratories.

Basic Information

Product Name	[1,1'-Biphenyl]-4,4'-Diamine, 2,2',6,6'-Tetramethyl-
CAS No.	4746-77-4
Molecular Formula	C16H20N2
Molecular Weight	240.35 g/mol
Synonyms	2,2',6,6'-Tetramethylbenzidine; 3,3',5,5'-Tetramethylbenzidine; TMB; 3,3',5,5'-Tetramethyl-[1,1'-biphenyl]-4,4'-diamine; 4,4'-Diamino-2,2',6,6'-tetramethylbiphenyl; 2,2',6,6'-Tetramethyl-4,4'-diaminobiphenyl; TMBD; NSC 406130
EINECS	225-265-8

Quality Control

Our [1,1'-Biphenyl]-4,4'-Diamine, 2,2',6,6'-Tetramethyl- is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. A Certificate of Analysis (COA) detailing all specifications is provided with each shipment. We support compliance with REACH and other global regulatory frameworks.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This material is easily oxidized; for long-term storage, consider an inert atmosphere (e.g., nitrogen or argon). 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%
Melting Point	168°C - 172°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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