Description

4,4'-Dihydroxy-3,3'-Dinitrobiphenyl is a high-purity, specialized aromatic compound featuring hydroxyl and nitro functional groups on a biphenyl backbone. This unique structure makes it a valuable intermediate for synthesizing advanced polymers, dyes, and liquid crystals. It is primarily sought by R&D chemists and production engineers in the fine chemical, advanced material, and pharmaceutical industries for applications requiring precise molecular architecture.

Application

• Polymer Intermediate: A key monomer for the synthesis of high-performance polyesters, polyamides, and polyimides, contributing to thermal stability and mechanical strength.
• Liquid Crystal Synthesis: Serves as a crucial building block in the production of nematic and smectic liquid crystals for display technologies.
• Dye and Pigment Manufacturing: Used in the synthesis of complex azo and disperse dyes, providing color fastness and specific chromophoric properties.
• Pharmaceutical Intermediate: Employed in the research and development of active pharmaceutical ingredients (APIs) with specific biphenyl-based structures.
• Cross-linking Agent: Functions as a cross-linker in epoxy and other resin systems to enhance network density and chemical resistance.
• Chemical Research (R&D): A versatile reagent for organic synthesis and material science research, enabling the exploration of new molecular entities.

Basic Information

Product Name	4,4'-Dihydroxy-3,3'-Dinitrobiphenyl
CAS No.	66041-61-0
Molecular Formula	C12H8N2O6
Molecular Weight	276.20 g/mol
Synonyms	3,3'-Dinitro-4,4'-biphenol; 3,3'-Dinitro[1,1'-biphenyl]-4,4'-diol; 4,4'-Biphenyldiol, 3,3'-dinitro-; Biphenyl-4,4'-diol, 3,3'-dinitro-; DNBP; DNDB; 66041-61-0; 4,4'-Dihydroxy-3,3'-dinitrodiphenyl
EINECS	Contact for details

Quality Control

Our 4,4'-Dihydroxy-3,3'-Dinitrobiphenyl is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting standards for research and industrial use. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and consistency.

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). Keep away from heat, sparks, and open flames. Due to its light-sensitive nature, containers should be amber-colored or stored in dark conditions.

Specification

Item	Specification
Appearance	Yellow to light brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Heavy Metals	≤ 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.