Description

5-[[4-[[4-[(4-Amino-6-Chloro-1,3,5-Triazin-2-Yl)Amino]-7-Sulpho-1-Naphthyl]Azo]-2,5-Xylyl]Azo]Naphthalene-1,3,6-Trisulphonic Acid is a high-purity, complex anionic dye intermediate belonging to the reactive dye class. Its core value lies in its ability to form strong covalent bonds with cellulose fibers, providing exceptional wash-fastness and brilliant color properties in the final textile product. This compound is essential for manufacturers of high-performance reactive dyes targeting the textile, leather, and specialty paper industries, where consistent quality and reliable supply are paramount.

Application

• Primary Intermediate for Reactive Dyes: Key building block for synthesizing high-quality reactive dyes used in cotton, viscose, and other cellulose fiber dyeing and printing.
• Textile Industry: Enables the production of dyes with excellent wet fastness properties, crucial for apparel, home textiles, and technical fabrics.
• Leather Coloring: Used in the formulation of dyes for leather finishing, providing vibrant and durable colors.
• Paper Dyeing: Applicable in the production of specialty colored papers where high color strength and stability are required.
• Research & Development: Serves as a critical compound for R&D laboratories developing new dye formulations and studying dye-fiber interactions.
• Ink Formulation: Potential use in the development of specialty inks where specific color properties and stability are needed.

Basic Information

Product Name	5-[[4-[[4-[(4-Amino-6-Chloro-1,3,5-Triazin-2-Yl)Amino]-7-Sulpho-1-Naphthyl]Azo]-2,5-Xylyl]Azo]Naphthalene-1,3,6-Trisulphonic Acid
CAS No.	3445-91-8
Molecular Formula	C31H21ClN10O13S4
Molecular Weight	929.82 g/mol
Synonyms	Reactive Dye Intermediate 3445-91-8; C.I. Reactive Red 198 Intermediate; 5-[[4-[[4-[(4,6-Dichloro-1,3,5-triazin-2-yl)amino]-7-sulfo-1-naphthyl]azo]-2,5-dimethylphenyl]azo]naphthalene-1,3,6-trisulfonic acid (related precursor); Trisulfonated Azo-Triazine Dye Intermediate; Amino Chloro Triazinyl Azo Naphthalene Trisulfonate; Azo dye derivative CAS 3445-91-8; Light Red 3B Reactive Dye Intermediate (common trade name association); 1,3,6-Naphthalenetrisulfonic acid, 5-[[4-[[4-[(4-amino-6-chloro-1,3,5-triazin-2-yl)amino]-7-sulfo-1-naphthalenyl]azo]-2,5-dimethylphenyl]azo]-
EINECS	Contact for details

Quality Control

Our production of 5-[[4-[[4-[(4-Amino-6-Chloro-1,3,5-Triazin-2-Yl)Amino]-7-Sulpho-1-Naphthyl]Azo]-2,5-Xylyl]Azo]Naphthalene-1,3,6-Trisulphonic Acid adheres to stringent quality protocols to ensure batch-to-batch consistency and performance reliability for industrial dye synthesis. Every lot undergoes comprehensive analysis, including HPLC for purity and identity confirmation, to meet the exacting standards of the textile chemical industry. A detailed Certificate of Analysis (COA) documenting all quality parameters is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled 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 quality and handling properties.

Specification

Item	Specification
Appearance	Dark brown to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Water Solubility	Freely soluble in water
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 5.0%

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