Description

Biphenyl-3,4-Diamine is an aromatic diamine compound with the CAS registry number 4458-39-3. This versatile organic intermediate is valued for its role as a key building block in the synthesis of complex heterocyclic systems and advanced materials. It is primarily sought after by research and development laboratories and industrial manufacturers in the pharmaceutical, agrochemical, and polymer sectors.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds with benzimidazole or related fused-ring structures.
• Agrochemical Synthesis: Used in the development of advanced herbicides, fungicides, and pesticides, where its aromatic diamine functionality enables the creation of novel active molecules.
• Polymer & Material Science: Serves as a monomer or cross-linking agent in the production of high-performance polyimides, polyamides, and epoxy resins, contributing to thermal stability and mechanical strength.
• Dye & Pigment Manufacturing: Acts as a key intermediate for the synthesis of complex organic dyes and pigments, especially azo dyes and colorants for specialized applications.
• Research & Development: Employed in academic and industrial R&D for exploring new organic reactions, catalysis, and the creation of novel chemical entities.
• Liquid Crystal & OLED Materials: Utilized in the synthesis of organic semiconductors and charge-transport materials for electronic display technologies.

Basic Information

Product Name	Biphenyl-3,4-Diamine
CAS No.	4458-39-3
Molecular Formula	C12H12N2
Molecular Weight	184.24 g/mol
Synonyms	3,4-Diaminobiphenyl; 3,4'-Diaminobiphenyl; 4-Amino-3-biphenylamine; [1,1'-Biphenyl]-3,4-diamine; 3,4-Biphenyldiamine; Biphenyl-3,4-diyldiamine; 3,4-Diamino-1,1'-biphenyl
EINECS	Contact for details

Quality Control

Our Biphenyl-3,4-Diamine is manufactured under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for sensitive synthetic applications. A Certificate of Analysis (COA) detailing specific results for purity, residual solvents, and related substances is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place 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 stability. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Light yellow to brown crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residual Solvents (GC)	Meets ICH guidelines

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