Description

Potassium Sodium 7-Hydroxy-8-[[4-[1-[4-[(4-Hydroxyphenyl)Azo]Phenyl]Cyclohexyl]Phenyl]Azo]Naphthalene-1,3-Disulphonate is a high-purity, water-soluble azo dye intermediate of significant industrial importance. This compound is valued for its role in synthesizing vibrant and stable colorants, particularly for demanding applications requiring excellent light and wash fastness. It is a critical raw material for manufacturers in the textile, ink, and specialty coatings industries seeking to produce high-performance dyes and pigments.

Application

• Textile Dyeing: A key intermediate for the synthesis of reactive and direct dyes used on cotton, wool, and nylon fibers.
• Ink Manufacturing: Used in the production of pigments for high-quality printing inks, including inks for packaging and security printing.
• Specialty Coatings: Serves as a colorant precursor in coatings for plastics, leather, and paper products.
• Liquid Crystal Display (LCD) Color Filters: Potential use in the synthesis of dyes for advanced electronic display applications.
• Biological Staining: May be utilized in the development of histological stains for microscopy, given its chromophoric structure.
• Research & Development: Employed as a standard or intermediate in chemical research for developing new chromophores and functional materials.

Basic Information

Product Name	Potassium Sodium 7-Hydroxy-8-[[4-[1-[4-[(4-Hydroxyphenyl)Azo]Phenyl]Cyclohexyl]Phenyl]Azo]Naphthalene-1,3-Disulphonate
CAS No.	72828-67-2
Molecular Formula	C40H28K2N4Na2O10S2 (or related salt form)
Molecular Weight	Contact for details
Synonyms	7-Hydroxy-8-({4-[1-(4-{(E)-[4-(Hydroxy-κO)phenyl]diazenyl-κN1}phenyl)cyclohexyl]phenyl}diazenyl-κN1)naphthalene-1,3-disulfonic acid, dipotassium disodium salt; C.I. Reactive Orange 107 intermediate; Azo dye intermediate 72828-67-2; 1,3-Naphthalenedisulfonic acid, 7-hydroxy-8-[[4-[1-[4-[(4-hydroxyphenyl)azo]phenyl]cyclohexyl]phenyl]azo]-, potassium sodium salt; Potassium sodium 7-hydroxy-8-[(4-{1-[4-(4-hydroxyphenylazo)phenyl]cyclohexyl}phenyl)azo]naphthalene-1,3-disulphonate
EINECS	Contact for details

Quality Control

Our production of this azo dye intermediate adheres to strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and meet customer specifications. Certificates of Analysis (COA) detailing batch-specific results are provided and 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). Due to its hygroscopic nature, the container must be kept tightly sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Dark brown to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture (KF)	≤ 5.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm

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