Description

3-[(4-Acetamidophenyl)Azo]-4-Hydroxy-7-[[[[5-Hydroxy-6-(Phenylazo)-7-Sulpho-2-Naphthyl]Amino]Carbonyl]Amino]Naphthalene-2-Sulphonic Acid is a high-purity, synthetic azo dye intermediate of significant industrial importance. This compound is valued for its ability to impart vivid and stable color properties in advanced dye formulations. It is primarily sought after by manufacturers in the textile, ink, and specialty chemical industries for producing high-performance dyes and pigments.

Application

• Primary Intermediate for Reactive Dyes: A key building block in the synthesis of high-quality reactive dyes for cotton and cellulose fiber dyeing.
• Textile Colorant Production: Used in manufacturing azoic dyes and pigments for the textile industry, offering excellent wash and light fastness.
• Ink and Toner Formulations: Serves as a colorant precursor in the production of industrial inks, including those for packaging and digital printing.
• Specialty Pigment Synthesis: Employed in creating complex, high-value organic pigments for plastics, coatings, and automotive finishes.
• Laboratory and R&D: Used as a reference standard and for research in developing new chromophores and dye-sensitized materials.

Basic Information

Product Name	3-[(4-Acetamidophenyl)Azo]-4-Hydroxy-7-[[[[5-Hydroxy-6-(Phenylazo)-7-Sulpho-2-Naphthyl]Amino]Carbonyl]Amino]Naphthalene-2-Sulphonic Acid
CAS No.	25188-34-5
Molecular Formula	C35H25N7O9S2
Molecular Weight	751.75 g/mol
Synonyms	C.I. Reactive Red 198; Reactive Red 198; 3-[(4-Acetamidophenyl)azo]-4-hydroxy-7-[[[[5-hydroxy-6-(phenylazo)-7-sulfo-2-naphthyl]amino]carbonyl]amino]-2-naphthalenesulfonic acid; 2-Naphthalenesulfonic acid, 3-[(4-acetamidophenyl)azo]-4-hydroxy-7-[[[[5-hydroxy-6-(2-phenylhydrazinylidene)-7-sulfo-2-naphthyl]amino]carbonyl]amino]-; Reactive Red M-3BE; Remazol Red 3BS; Sumifix Red 3BS
EINECS	Contact for details

Quality Control

Our production of 3-[(4-Acetamidophenyl)Azo]-4-Hydroxy-7-[[[[5-Hydroxy-6-(Phenylazo)-7-Sulpho-2-Naphthyl]Amino]Carbonyl]Amino]Naphthalene-2-Sulphonic Acid adheres to stringent quality management protocols. Each batch undergoes rigorous analytical testing to ensure high purity, consistent strength, and precise color value. Certificates of Analysis (COA) detailing purity, impurity profile, and physical specifications are available upon request to support your quality assurance and regulatory compliance 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). The product is light-sensitive and should be stored away from direct light exposure. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Sulfated Ash	≤ 1.0%
Water Solubility	Conforms
Heavy Metals (as Pb)	≤ 20 ppm

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