Description

2,2'-Dimethyl-4-(4-Hydroxy-5-Carboxyphenylazo)-4'-[5-(4-Sulfophenylazo)-2,6-Dihydroxy-Phenylazo]Biphenyl is a complex, high-purity azo dye intermediate designed for advanced colorant synthesis. This compound matters for its ability to impart specific, stable color properties in demanding applications where precise molecular structure is critical for performance. It is primarily needed by manufacturers in the specialty chemical, high-performance pigment, and advanced material sectors seeking to develop next-generation dyes and functional colorants.

Application

• Primary intermediate for the synthesis of high-performance azo pigments and dyes.
• Key component in the production of colorants for inks and toners requiring high color strength and stability.
• Used in the manufacturing of specialty dyes for plastics and synthetic fibers.
• Potential raw material for research and development of functional dyes in electronics and optics.
• Applicable in the formulation of specialized coatings and paints where specific lightfastness is required.
• Serves as a chemical building block in academic and industrial R&D for novel chromophoric systems.

Basic Information

Product Name	2,2'-Dimethyl-4-(4-Hydroxy-5-Carboxyphenylazo)-4'-[5-(4-Sulfophenylazo)-2,6-Dihydroxy-Phenylazo]Biphenyl
CAS No.	169797-32-4
Molecular Formula	C39H28N6O8S
Molecular Weight	740.74 g/mol
Synonyms	2,2'-Dimethyl-4-(4-hydroxy-5-carboxyphenylazo)-4'-[5-(4-sulfophenylazo)-2,6-dihydroxyphenylazo]biphenyl; Biphenyl, 2,2'-dimethyl-4-[(4-hydroxy-5-carboxyphenyl)azo]-4'-[5-[(4-sulfophenyl)azo]-2,6-dihydroxyphenyl]azo]-; Azo dye intermediate 169797-32-4; Complex azo biphenyl derivative; Tetrakis-azo biphenyl intermediate; High-performance dye precursor; CAS 169797-32-4
EINECS	Contact for details

Quality Control

Our production of this advanced intermediate adheres to strict quality control protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced chromatographic and spectroscopic techniques. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Heavy Metals	≤ 20 ppm
Residual Solvents	Meets ICH guidelines

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