Description

1,3-Benzenediol, 4,4-1,1-Biphenyl-4,4-Diylbis(Azo)Bis- is a specialized azo dye intermediate known for its distinct chromophoric structure. This compound matters for its role in synthesizing high-performance pigments and dyes, offering excellent color fastness and thermal stability. It is primarily needed by manufacturers in the pigments, dyes, plastics, and specialty coatings industries seeking to produce vivid and durable colors.

Application

• Pigment Manufacturing: A key intermediate for producing high-performance organic pigments used in industrial coatings and inks.
• Dye Synthesis: Serves as a precursor for azo dyes applied in textiles, leather, and paper coloring.
• Plastics and Polymers: Used to impart color to engineering plastics and synthetic fibers during the polymerization or compounding process.
• Specialty Coatings: Employed in the formulation of advanced coatings requiring specific color properties and stability.
• Research & Development: Utilized in chemical research for developing new chromophores and studying azo compound chemistry.

Basic Information

Product Name	1,3-Benzenediol, 4,4-1,1-Biphenyl-4,4-Diylbis(Azo)Bis-
CAS No.	6358-84-5
Molecular Formula	C24H18N4O2
Molecular Weight	394.43 g/mol
Synonyms	4,4'-Bis(2,4-dihydroxyphenylazo)biphenyl; C.I. 21000; 1,3-Benzenediol, 4,4'-(1,1'-biphenyl-4,4'-diylbis(azo))bis-; 4,4'-[(E)-1,2-Diazenediyl]bis[4,1-phenylenebis(azo)]bis[benzene-1,3-diol]; Azo Dye Intermediate 6358-84-5; 4,4'-Dihydroxyazobenzene-4,4'-diyldiazenyl)dibenzene-1,3-diol; Biphenyl-based azo dye
EINECS	228-785-4

Quality Control

Our production of 1,3-Benzenediol, 4,4-1,1-Biphenyl-4,4-Diylbis(Azo)Bis- adheres to stringent quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC and spectrophotometric analysis, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are available upon request to support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat sources and incompatible materials. Due to its light-sensitive nature, containers should be opaque or stored in darkness.

Specification

Item	Specification
Appearance	Dark red to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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