Description

Trisodium 3-[[4-[[4-[(4-Amino-6-Chloro-1,3,5-Triazin-2-Yl)Amino]-7-Sulphonato-1-Naphthyl]Azo]-2,5-Dimethylphenyl]Azo]Naphthalene-1,5-Disulphonate is a high-purity, water-soluble anionic dye belonging to the reactive dye class, characterized by its complex polyazo and triazine-based structure. This compound is engineered to deliver exceptional color fastness, brightness, and chemical stability in demanding industrial applications. It is a critical intermediate and colorant for manufacturers in the textile, paper, and specialty ink industries who require reliable, high-performance pigments for their production processes.

Application

• Primary application in textile dyeing and printing, particularly for cotton, viscose, and other cellulosic fibers where it forms a covalent bond with the fiber.
• Used in the coloration of paper and paperboard products to achieve vibrant, uniform shades.
• Employed as a colorant in the formulation of specialty inks, including inks for packaging and security printing.
• Serves as a key intermediate in the synthesis of more complex dyes and pigments.
• Potential use in the coloration of leather and other natural materials.
• Applied in research and development laboratories for analytical and experimental purposes.

Basic Information

Item	Details
Product Name	Trisodium 3-[[4-[[4-[(4-Amino-6-Chloro-1,3,5-Triazin-2-Yl)Amino]-7-Sulphonato-1-Naphthyl]Azo]-2,5-Dimethylphenyl]Azo]Naphthalene-1,5-Disulphonate
CAS No.	84434-57-1
Molecular Formula	C31H19ClN9Na3O10S3
Molecular Weight	Contact for details
Synonyms	Reactive Black 5 (sodium salt); C.I. Reactive Black 5; Trisodium 8-[[4-[[4-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]-7-sulfonato-1-naphthyl]azo]-2,5-dimethylphenyl]azo]naphthalene-1,5-disulfonate; Remazol Black B; Levafix Black E-B; Procion Black H-EX; Dianix Black BG-FS; Kayacion Black P-N
EINECS	Contact for details

Quality Control

Our production of Trisodium 3-[[4-[[4-[(4-Amino-6-Chloro-1,3,5-Triazin-2-Yl)Amino]-7-Sulphonato-1-Naphthyl]Azo]-2,5-Dimethylphenyl]Azo]Naphthalene-1,5-Disulphonate adheres to stringent quality management systems. Every batch undergoes rigorous analytical testing to ensure consistent purity, color strength, and application performance. Certificates of Analysis (COA) detailing key specifications such as assay, impurity profile, and solubility 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 (moisture-sensitive) nature, the container must be kept sealed when not in use to prevent absorption of atmospheric moisture, which can affect product performance and handling.

Specification

Item	Specification
Appearance	Dark blue to black powder
Identification (IR)	Conforms to standard
Assay (HPLC)	Min. 95%
Moisture Content	Max. 5.0%
Water Solubility	Completely soluble
pH (1% Solution)	6.0 - 8.0
Heavy Metals (as Pb)	Max. 20 ppm

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