Description

3,3"-Diamino-m-Terphenyl is a high-purity aromatic diamine compound, serving as a critical building block in advanced material synthesis. Its value lies in its rigid, conjugated molecular structure and dual amine functionalities, which enable precise polymerization and cross-linking reactions. This product is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries, particularly for developing high-performance resins, liquid crystals, and organic electronic materials.

Application

• As a key monomer for the synthesis of high-temperature resistant polyimides and polyamides.
• In the development of advanced epoxy resin curing agents for composite materials.
• As a precursor for organic semiconductors and charge-transport materials in OLED and photovoltaic research.
• In pharmaceutical intermediate synthesis for creating complex molecular architectures.
• For the preparation of ligands and chelating agents in catalytic systems.
• As a building block for dyes, pigments, and photostabilizers.
• In the research and development of liquid crystalline polymers (LCPs).
• For cross-linking applications in specialty adhesives and coatings.

Basic Information

Product Name	3,3"-Diamino-m-Terphenyl
CAS No.	95919-21-4
Molecular Formula	C18H16N2
Molecular Weight	260.33 g/mol
Synonyms	m-Terphenyl-3,3"-diamine; 3,3'-Diamino-m-terphenyl; 1,1':3',1''-Terphenyl-3,3''-diamine; 3,3''-Diamino-1,1':3',1''-terphenyl; [1,1':3',1''-Terphenyl]-3,3''-diamine; Biphenyl-3,3'-diamine (related); m-Terphenyl diamine; Contact for additional trade names.
EINECS	Contact for details

Quality Control

Our 3,3"-Diamino-m-Terphenyl is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via FT-IR and NMR spectroscopy, to ensure it meets exacting standards for research and industrial use. Certificates of Analysis (COA) detailing all test results are provided with every shipment and are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, and well-ventilated place. Recommended long-term storage temperature is 2-8°C. Allow the container to reach room temperature before opening to minimize moisture ingress.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Heavy Metals	≤ 10 ppm
Residue on Ignition	≤ 0.1%

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