Description

2,7-Naphthalenedisulfonic acid, 5-[[4-chloro-6-[[3-[[4-chloro-6-(1-methylethoxy)-1,3,5-triazin-2-yl]amino]-4-sulfophenyl]amino]-1,3,5-triazin-2-yl]amino]-4-hydroxy-3-[(4-methyl-2-sulfophenyl)azo]-, tetrasodium salt is a high-purity, reactive dye intermediate belonging to the class of azo dyes containing triazine and naphthalene sulfonate groups. This compound is valued for its ability to form strong covalent bonds with cellulosic fibers, providing excellent wash and light fastness properties in the final dyed product. It is an essential chemical for manufacturers of high-performance reactive dyes targeting the textile, leather, and specialty paper industries.

Application

• Primary Intermediate for Reactive Dyes: Key building block for synthesizing high-quality reactive dyes used in cotton, viscose, and other cellulosic fiber dyeing.
• Textile Industry: Imparts vibrant and durable colors with superior fastness to washing, light, and rubbing in fabric production.
• Leather Processing: Used in the formulation of dyes for coloring leather goods, ensuring deep, even penetration and color stability.
• Paper Coloring: Employed in the manufacture of specialty and decorative papers requiring high color strength and resistance.
• Ink Formulation: A component in the production of certain industrial inks where chemical stability and color intensity are critical.
• Research & Development: Serves as a reference standard and starting material in chemical R&D for novel dye and pigment synthesis.

Basic Information

Product Name	2,7-Naphthalenedisulfonic acid, 5-[[4-chloro-6-[[3-[[4-chloro-6-(1-methylethoxy)-1,3,5-triazin-2-yl]amino]-4-sulfophenyl]amino]-1,3,5-triazin-2-yl]amino]-4-hydroxy-3-[(4-methyl-2-sulfophenyl)azo]-, tetrasodium salt
CAS No.	67827-65-0
Molecular Formula	C34H24Cl2N12Na4O16S4
Molecular Weight	~1155.8 g/mol (Contact for exact details)
Synonyms	Reactive Dye Intermediate 67827-65-0; Tetrasodium 5-[[4-chloro-6-[[3-[[4-chloro-6-isopropoxy-1,3,5-triazin-2-yl]amino]-4-sulfophenyl]amino]-1,3,5-triazin-2-yl]amino]-4-hydroxy-3-[(4-methyl-2-sulfophenyl)azo]naphthalene-2,7-disulfonate; Azo Triazine Dye Intermediate; C.I. Reactive Red 198 (related); CAS 67827-65-0; 5-[[4-Chloro-6-[[3-[[4-chloro-6-(1-methylethoxy)-1,3,5-triazin-2-yl]amino]-4-sulfophenyl]amino]-1,3,5-triazin-2-yl]amino]-4-hydroxy-3-[(4-methyl-2-sulfophenyl)azo]-2,7-naphthalenedisulfonic acid tetrasodium salt
EINECS	Contact for details

Quality Control

Our production of this reactive dye intermediate adheres to stringent quality control protocols to ensure batch-to-batch consistency and high chemical purity. Quality is verified through advanced analytical techniques including HPLC, UV-Vis, and titration methods. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment to support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Dark red to brown powder or granules
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 90%
Moisture Content	Max. 5.0%
Water Solubility	Freely soluble
Heavy Metals (as Pb)	Max. 20 ppm
Related Substances (HPLC)	Contact for details

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