Description

Trisodium 3-[[4-[(6-Amino-1-Hydroxy-3-Sulphonato-2-Naphthyl)Azo]-5-Methoxy-o-Tolyl]Azo]Naphthalene-1,5-Disulphonate is a high-purity, water-soluble azo dye intermediate of significant commercial importance. It serves as a critical building block for synthesizing vibrant and stable dyes and pigments, particularly in the production of high-performance colorants. This compound is essential for manufacturers in the textile, ink, and specialty coatings industries seeking to develop products with excellent color fastness and solubility properties.

Application

• Primary Intermediate for Reactive Dyes: A key precursor in the synthesis of reactive dyes for cotton and other cellulosic fibers, providing excellent wash and light fastness.
• Pigment Manufacturing: Used in the production of high-quality, water-soluble pigments for inks, including digital and textile printing inks.
• Specialty Coatings: Employed in formulating colored coatings and paints where specific chromaticity and stability are required.
• Laboratory & Research: Serves as a standard or research chemical for developing new chromophores and studying azo dye chemistry and applications.
• Functional Colorants: Potential use in the development of functional dyes for non-textile applications, such as in sensors or light-harvesting materials.

Basic Information

Product Name	Trisodium 3-[[4-[(6-Amino-1-Hydroxy-3-Sulphonato-2-Naphthyl)Azo]-5-Methoxy-o-Tolyl]Azo]Naphthalene-1,5-Disulphonate
CAS No.	64346-35-6
Molecular Formula	C28H19N5Na3O12S3
Molecular Weight	814.68 g/mol
Synonyms	3-[[4-[(6-Amino-1-hydroxy-3-sulfo-2-naphthyl)azo]-5-methoxy-2-methylphenyl]azo]-1,5-naphthalenedisulfonic acid trisodium salt; C.I. Reactive Orange 16 intermediate; Trisodium 3-[[4-[(6-amino-1-hydroxy-3-sulfonato-2-naphthyl)azo]-5-methoxy-o-tolyl]azo]naphthalene-1,5-disulfonate; Reactive Orange 16 precursor; Azo dye intermediate 64346-35-6; 1,5-Naphthalenedisulfonic acid, 3-[[4-[(6-amino-1-hydroxy-3-sulfo-2-naphthyl)azo]-5-methoxy-2-methylphenyl]azo]-, trisodium salt
EINECS	Contact for details

Quality Control

Our production of Trisodium 3-[[4-[(6-Amino-1-Hydroxy-3-Sulphonato-2-Naphthyl)Azo]-5-Methoxy-o-Tolyl]Azo]Naphthalene-1,5-Disulphonate adheres to stringent quality management protocols to ensure batch-to-batch consistency and purity for industrial synthesis. Each lot undergoes comprehensive analysis including HPLC assay, spectrophotometric identification, and control of key impurities. Certificates of Analysis (COA) detailing purity, physical properties, and test results are provided with every shipment 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 product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect purity and handling properties.

Specification

Item	Specification
Appearance	Dark brown to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95.0%
Water Content (KF)	Max. 5.0%
pH (1% Solution)	7.0 - 9.0
Heavy Metals (as Pb)	Max. 20 ppm
Solubility in Water	Freely soluble

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