Description

2,2'-Diamino-6,6'-Dimethylbiphenyl is a high-purity, aromatic diamine monomer characterized by its sterically hindered biphenyl structure. This compound is a critical building block in the synthesis of advanced polymers and specialty chemicals, valued for its ability to impart rigidity and thermal stability. It is primarily sought after by manufacturers in the polymer, pharmaceutical, and agrochemical industries for applications requiring high-performance materials.

Application

• Polymer Synthesis: A key monomer for producing high-performance polyimides, polyamides, and polybenzimidazoles (PBIs) used in aerospace, electronics, and high-temperature filtration.
• Pharmaceutical Intermediates: Serves as a versatile precursor in the synthesis of active pharmaceutical ingredients (APIs) and complex organic molecules.
• Agrochemicals: Used in the development of advanced herbicides, fungicides, and plant growth regulators.
• Ligand and Catalyst Systems: Employed in the preparation of chiral ligands and metal-organic frameworks (MOFs) for catalysis and separation processes.
• Dye and Pigment Manufacturing: Acts as an intermediate for creating heat-resistant and light-stable dyes and organic pigments.
• Epoxy Curing Agents: Functions as a curing agent or hardener for epoxy resin systems, enhancing their mechanical and thermal properties.

Basic Information

Item	Details
Product Name	2,2'-Diamino-6,6'-Dimethylbiphenyl
CAS No.	20261-65-8
Molecular Formula	C14H16N2
Molecular Weight	212.29 g/mol
Synonyms	6,6'-Dimethyl-[1,1'-biphenyl]-2,2'-diamine; 2,2'-Biphenyldiamine, 6,6'-dimethyl-; 6,6'-Dimethylbiphenyl-2,2'-diamine; 2,2'-Diamino-6,6'-dimethyl-1,1'-biphenyl; 6,6'-Dimethyl-2,2'-diaminobiphenyl; m-Tolidine; 3,3'-Dimethylbenzidine (Note: This is a structural isomer, often listed as a synonym in databases)
EINECS	243-684-5

Quality Control

Our 2,2'-Diamino-6,6'-Dimethylbiphenyl is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for advanced synthesis. 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, 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 (e.g., nitrogen or argon) for long-term preservation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.1%

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