Description

7-[[4-[[4-[[4-fluoro-6-(2-sulphoanilino)-1,3,5-triazin-2-yl]amino]-2-methylphenyl]azo]-7-sulpho-1-naphthyl]azo]naphthalene-1,3,5-trisulphonic acid, potassium sodium salt is a high-purity, water-soluble anionic dye belonging to the reactive dye class, characterized by its complex polyazo structure and multiple sulfonic acid groups. This compound is engineered to deliver exceptional color strength, wash fastness, and fiber reactivity, making it a critical component for demanding coloration processes. It is primarily utilized by manufacturers in the textile, leather, and specialty paper industries seeking vibrant and durable hues.

Application

• Textile Dyeing: A key intermediate for the synthesis of high-performance reactive dyes used on cellulosic fibers like cotton, viscose, and linen.
• Leather Coloring: Employed in the production of dyes for imparting deep, uniform, and fast colors to leather goods.
• Paper Industry: Used in the manufacturing of specialty colored papers where high color value and stability are required.
• Ink Formulation: Serves as a pigment precursor or dye for certain types of industrial inks requiring specific chromatic properties.
• Research & Development: Utilized as a standard or intermediate in chemical research for developing new dye molecules and studying azo chemistry.

Basic Information

Product Name	7-[[4-[[4-[[4-fluoro-6-(2-sulphoanilino)-1,3,5-triazin-2-yl]amino]-2-methylphenyl]azo]-7-sulpho-1-naphthyl]azo]naphthalene-1,3,5-trisulphonic acid, potassium sodium salt
CAS No.	75199-01-8
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Reactive Dye Intermediate; Polyazo Dye; C.I. Reactive Black 5 Intermediate; Potassium Sodium Salt of Azo Dye Sulfonic Acid; 1,3,5-Naphthalenetrisulfonic Acid derivative; Azo Triazine Dye; Sulfonated Azo Dye; Textile Dye Intermediate
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality management systems to ensure batch-to-batch consistency and performance. Every lot is analyzed for critical parameters including purity, color strength, and impurity profile. Certificates of Analysis (COA) documenting these specifications are available upon request to support your quality assurance protocols.

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 performance.

Specification

Item	Specification
Appearance	Dark powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Moisture Content	Max. 5.0%
Water Solubility	Freely soluble
Heavy Metals	Max. 20 ppm

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