Description

3-[[4-(Acetylamino)Phenyl]Azo]-4-Hydroxy-7-[[[[5-Hydroxy-6-(Phenylazo)-7-Sulpho-2-Naphthyl]Amino]Carbonyl]Amino]Naphthalene-2-Sulphonic Acid, Sodium Salt is a high-purity, synthetic azo dye intermediate of significant industrial importance. This compound is valued for its ability to impart vibrant and stable color properties in advanced dye formulations. It is primarily required by manufacturers in the textile, ink, and specialty coatings industries seeking to produce high-performance colorants with excellent fastness properties.

Application

• Primary Intermediate for Reactive and Acid Dyes: A key building block in the synthesis of high-grade dyes for textile fibers, particularly wool, silk, and nylon.
• Specialty Ink Manufacturing: Used in the production of inks for digital textile printing and high-resolution inkjet applications requiring color consistency.
• Pigment and Lake Colorant Synthesis: Serves as a precursor in the manufacture of pigments and lake colorants for paints and industrial coatings.
• Biological Staining Reagent: Potential use in the formulation of specialized histological stains for laboratory and diagnostic applications.
• Research & Development: Employed in chemical R&D for developing new chromophores and studying azo dye chemistry and photostability.

Basic Information

Product Name	3-[[4-(Acetylamino)Phenyl]Azo]-4-Hydroxy-7-[[[[5-Hydroxy-6-(Phenylazo)-7-Sulpho-2-Naphthyl]Amino]Carbonyl]Amino]Naphthalene-2-Sulphonic Acid, Sodium Salt
CAS No.	83232-29-5
Molecular Formula	C35H24N6O10S2Na2 (or related sodium salt form)
Molecular Weight	Contact for details
Synonyms	C.I. Reactive Red 198; Reactive Red 198; Sodium 3-[[4-(acetylamino)phenyl]azo]-4-hydroxy-7-[[[[5-hydroxy-6-(phenylazo)-7-sulfo-2-naphthyl]amino]carbonyl]amino]-2-naphthalenesulfonate; 2-Naphthalenesulfonic acid, 7-[[[[5-hydroxy-6-(2-phenyldiazenyl)-7-sulfo-2-naphthalenyl]amino]carbonyl]amino]-3-[[4-(acetylamino)phenyl]azo]-4-hydroxy-, sodium salt (1:?); Azo dye intermediate RR198; Acetyl Amino Phenyl Azo Naphthol Sulfonic Acid derivative.
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to stringent quality management systems. Every batch undergoes comprehensive analytical testing to ensure chemical identity, purity, and consistency meet exacting customer specifications. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting key parameters such as assay, impurity profile, and physical characteristics.

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). Due to its hygroscopic nature, the container must be kept tightly sealed after initial opening to prevent moisture absorption, which can affect product performance and handling.

Specification

Item	Specification
Appearance	Dark red to brown powder or granules
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Moisture Content	Max. 5.0%
Water Solubility	Freely soluble
Heavy Metals (as Pb)	Max. 20 ppm
Related Substances (HPLC)	Total impurities: Max. 3.0%

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