Description

3-[[4-[(2-Ethoxy-5-Methylphenyl)Azo]-1-Naphthyl]Azo]Benzenesulphonic Acid is a specialized azo dye intermediate, known for its distinct chromophoric structure. This compound is valued for its ability to impart specific color properties and its role as a key precursor in the synthesis of high-performance dyes and pigments. It is primarily required by manufacturers in the textile, ink, and specialty chemical industries seeking to develop or produce vivid, stable colorants.

Application

• Primary Intermediate for Azo Dyes & Pigments: Serves as a critical building block in the synthesis of complex, high-value azo dyes used in textile coloring.
• Textile Dye Manufacturing: Used to produce dyes for coloring natural and synthetic fibers, offering good wash and light fastness properties.
• Ink Formulation: Employed in the production of colorants for printing inks, including those for packaging and publications.
• Specialty Chemical Synthesis: Acts as a key intermediate for creating functional dyes used in non-textile applications such as lasers or optical media.
• Research & Development: Utilized in chemical R&D labs for developing new chromophores and studying structure-color relationships.

Basic Information

Product Name	3-[[4-[(2-Ethoxy-5-Methylphenyl)Azo]-1-Naphthyl]Azo]Benzenesulphonic Acid
CAS No.	52695-54-2
Molecular Formula	C25H22N4O4S
Molecular Weight	474.53 g/mol
Synonyms	Benzenesulfonic acid, 3-[[4-[(2-ethoxy-5-methylphenyl)azo]-1-naphthalenyl]azo]-; C.I. 26050; Acid Orange 156; 3-[[4-[(2-Ethoxy-5-methylphenyl)azo]-1-naphthyl]azo]benzenesulfonic acid; 2-Ethoxy-5-methyl-4'-[(4-sulfophenyl)azo]azobenzene; Azo dye intermediate 52695-54-2
EINECS	Contact for details

Quality Control

Our production of 3-[[4-[(2-Ethoxy-5-Methylphenyl)Azo]-1-Naphthyl]Azo]Benzenesulphonic Acid adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and meet precise customer specifications. Certificates of Analysis (COA) documenting all critical parameters are available upon request.

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 incompatible materials and sources of ignition. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided.

Specification

Item	Specification
Appearance	Orange to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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