Description

Tetrasodium 2-[[4-[[4-[(4-Amino-6-Chloro-1,3,5-Triazin-2-Yl)Amino]-5-Sulphonato-1-Naphthyl]Azo]-6-Sulphonato-1-Naphthyl]Azo]Benzene-1,4-Disulphonate is a high-purity, water-soluble anionic dye intermediate belonging to the class of reactive azo dyes. Its primary value lies in its ability to form strong covalent bonds with cellulose fibers, providing exceptional wash and light fastness in textile applications. This compound is essential for manufacturers in the textile and specialty chemical industries seeking to produce vibrant, durable, and high-performance dyes and pigments.

Application

• Primary Textile Dyeing: As a key intermediate for synthesizing high-grade reactive dyes for cotton, viscose, and other cellulosic fibers.
• Pigment Manufacturing: Used in the production of high-performance organic pigments for inks, coatings, and plastics.
• Leather Coloring: Employed in the formulation of dyes for leather finishing to achieve deep, stable colors.
• Paper Industry: Utilized in the coloring of specialty papers where high color strength and stability are required.
• Research & Development: Serves as a critical building block in chemical R&D for developing new chromophores and functional dyes.

Basic Information

Item	Detail
Product Name	Tetrasodium 2-[[4-[[4-[(4-Amino-6-Chloro-1,3,5-Triazin-2-Yl)Amino]-5-Sulphonato-1-Naphthyl]Azo]-6-Sulphonato-1-Naphthyl]Azo]Benzene-1,4-Disulphonate
CAS No.	70161-17-0
Molecular Formula	C35H19ClN10Na4O14S4
Molecular Weight	Contact for details
Synonyms	Reactive Black 5 Intermediate; Tetrasodium 4-Amino-5-hydroxy-6-[[7-sulfo-4-[(4-sulfophenyl)azo]-1-naphthyl]azo]naphthalene-1,7-disulfonate derivative; C.I. Reactive Black 5 precursor; Azo dye intermediate CAS 70161-17-0; 1,3,5-Triazine-2,4-diamine, 6-chloro-N-[4-[[4-[(4-aminophenyl)azo]-7-sulfo-1-naphthyl]azo]-5-sulfo-1-naphthyl]-, tetrasodium salt; Reactive dye intermediate for cellulose
EINECS	Contact for details

Quality Control

Our production of Tetrasodium 2-[[4-[[4-[(4-Amino-6-Chloro-1,3,5-Triazin-2-Yl)Amino]-5-Sulphonato-1-Naphthyl]Azo]-6-Sulphonato-1-Naphthyl]Azo]Benzene-1,4-Disulphonate adheres to stringent quality management systems. Every batch undergoes rigorous analytical testing to ensure high purity, consistent color value, and precise chemical structure. Certificates of Analysis (COA) documenting key parameters 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 nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark blue to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Water Solubility	Freely soluble
Heavy Metals (as Pb)	≤ 20 ppm

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