Description

4-(4-Ethoxyphenylazo)-4'-(2-Hydroxy-6,8-Disulfo-1-Naphthylazo)Diphenyl is a specialized disazo dye intermediate with a complex molecular structure, offering unique chromophoric properties. This compound is valued for its ability to impart specific color characteristics and functional performance in advanced material synthesis. It is primarily utilized by manufacturers in the dyes and pigments, specialty chemicals, and advanced material research sectors seeking high-purity intermediates for custom formulations.

Application

• Primary Intermediate for High-Performance Dyes: Synthesis of specialized azo dyes for textiles, inks, and coatings requiring specific lightfastness and hue.
• Functional Pigment Development: Used in the research and production of pigments for plastics, masterbatches, and industrial paints.
• Analytical Chemistry Reagent: Acts as a chromogenic agent or a complexometric indicator in specific laboratory analyses.
• Material Science Research: Investigated for use in organic electronics, non-linear optical materials, and other advanced functional materials due to its conjugated structure.
• Specialty Chemical Synthesis: Serves as a key building block for synthesizing more complex chemical entities in pharmaceutical and agrochemical research.

Basic Information

Item	Details
Product Name	4-(4-Ethoxyphenylazo)-4'-(2-Hydroxy-6,8-Disulfo-1-Naphthylazo)Diphenyl
CAS No.	172305-00-9
Molecular Formula	C30H22N4O8S2
Molecular Weight	630.65 g/mol
Synonyms	4,4'-Bis[(4-ethoxyphenyl)azo]-2,2'-dihydroxy-6,6'-disulfo-1,1'-binaphthyl; C.I. 172305-00-9; Disazo dye intermediate based on binaphthol; 4-Ethoxyphenylazo hydroxy disulfo naphthylazo diphenyl; 1,1'-Binaphthalene-2,2'-diol, 6,6'-disulfo-4,4'-bis[(4-ethoxyphenyl)azo]-; Light Fast Orange R intermediate (analogous)
EINECS	Contact for details

Quality Control

Our production of 4-(4-Ethoxyphenylazo)-4'-(2-Hydroxy-6,8-Disulfo-1-Naphthylazo)Diphenyl adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and reliability for industrial applications. Certificates of Analysis (COA) detailing all specifications are provided with each shipment.

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 sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Orange to brownish-red powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 3.0%

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