Description

7-Hydroxy-8-[4-(Phenylazo)Phenylazo]-1,3,6-Naphthalenetrisulfonic Acid is a high-purity, synthetic organic compound belonging to the azo dye and naphthalene sulfonic acid chemical class. This specialized chemical is valued for its strong chromophoric properties and water solubility, making it a critical intermediate in the production of advanced colorants and functional materials. It is primarily sought by manufacturers in the dye and pigment, textile, and specialty chemical synthesis industries for applications requiring precise color development and chemical functionality.

Application

• Primary Intermediate for Azo Dyes and Pigments: Serves as a key building block in the synthesis of high-performance, water-soluble azo dyes for textiles, inks, and coatings.
• Textile Dyeing and Printing: Used in the formulation of dyes for coloring natural and synthetic fibers, offering good wash and light fastness.
• Specialty Chemical Synthesis: Acts as a functional intermediate in the production of complex organic molecules for research and industrial applications.
• Analytical Reagent: Can be utilized as a colorimetric reagent or a standard in analytical chemistry due to its distinct chromogenic properties.
• Functional Material Development: Investigated for use in the development of advanced materials, such as optical sensors or light-harvesting components.

Basic Information

Product Name	7-Hydroxy-8-[4-(Phenylazo)Phenylazo]-1,3,6-Naphthalenetrisulfonic Acid
CAS No.	47810-49-1
Molecular Formula	C22H15N4O10S3
Molecular Weight	591.57 g/mol
Synonyms	7-Hydroxy-8-(4-phenylazophenylazo)-1,3,6-naphthalenetrisulfonic acid; Acid Black 234; C.I. 31785; 1,3,6-Naphthalenetrisulfonic acid, 7-hydroxy-8-[2-(4-phenylphenyl)diazenyl]diazenyl]-; 8-[4-(Phenylazo)phenylazo]-7-hydroxy-1,3,6-naphthalenetrisulfonic acid; Azo Black 234; Trisodium 7-hydroxy-8-[(E)-2-[4-[(E)-phenyldiazenyl]phenyl]diazenyl]naphthalene-1,3,6-trisulfonate
EINECS	Contact for details

Quality Control

Our production of 7-Hydroxy-8-[4-(Phenylazo)Phenylazo]-1,3,6-Naphthalenetrisulfonic Acid adheres to stringent quality management protocols to ensure batch-to-batch consistency and purity. The material undergoes rigorous analytical testing, including HPLC for assay and impurity profiling, to meet precise customer specifications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and related substances is provided with every shipment 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). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Dark brown to black powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 1.0%
Related Substances (HPLC)	Total impurities ≤ 3.0%
Solubility (Water)	Freely soluble

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