Description

Tetrasodium 3-[[4-[[4-[(4-Amino-6-Chloro-1,3,5-Triazin-2-Yl)Amino]-5-Sulphonato-1-Naphthyl]Azo]-7-Sulphonato-1-Naphthyl]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 provide exceptional color fastness and brilliant hue when covalently bonding to cellulosic fibers like cotton and viscose. It is a critical component for industrial manufacturers seeking reliable and consistent dyeing performance in demanding textile applications. The product is supplied as a high-grade powder to ensure optimal solubility and batch-to-batch uniformity for professional use.

Application

• Reactive Dyeing of Cellulosic Fibers: Primary application for dyeing cotton, linen, rayon, and other natural cellulosic materials, offering excellent wash and light fastness.
• Textile Printing: Used in the formulation of printing pastes and inks for textile printing processes.
• Leather Coloring: Employed in the dyeing of leather goods where deep, vibrant colors are required.
• Paper Staining: Suitable for coloring paper and specialty paper products.
• Research & Development: Serves as a key intermediate or reference standard in chemical research and dye synthesis laboratories.
• Industrial Colorant: Potential use as a colorant in other industrial applications requiring water-soluble anionic dyes.

Basic Information

Product Name	Tetrasodium 3-[[4-[[4-[(4-Amino-6-Chloro-1,3,5-Triazin-2-Yl)Amino]-5-Sulphonato-1-Naphthyl]Azo]-7-Sulphonato-1-Naphthyl]Azo]Naphthalene-1,5-Disulphonate
CAS No.	68992-02-9
Molecular Formula	C~40~H~22~ClN~11~Na~4~O~16~S~4~
Molecular Weight	Contact for details
Synonyms	Reactive Black 5 (Tetrasodium Salt); C.I. Reactive Black 5; Remazol Black B; Tetrasodium 8-[(4-{[4-(2-Amino-4-chloro-1,3,5-triazin-6-yl)amino]-5-sulphonato-1-naphthyl}azo)-7-sulphonato-1-naphthyl]azo]naphthalene-1,5-disulphonate; Lanasol Black B; Procion Black H-EXL; Sumifix Black B; Drimarene Black K-2B
EINECS	Contact for details

Quality Control

Our production of Tetrasodium 3-[[4-[[4-[(4-Amino-6-Chloro-1,3,5-Triazin-2-Yl)Amino]-5-Sulphonato-1-Naphthyl]Azo]-7-Sulphonato-1-Naphthyl]Azo]Naphthalene-1,5-Disulphonate adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise color strength and application performance specifications. Certificates of Analysis (COA) detailing all relevant parameters are available upon request to support your quality assurance and regulatory needs.

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). This material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Dark blue to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Color Strength	100% ± 3% (vs. Standard)
Water Content (KF)	Max. 5.0%
Solubility in Water	Completely soluble
pH (1% Solution)	7.0 - 9.0

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