Description

4-Hydroxy-3-[[4-[[[3-[[2-(Sulfooxy)Ethyl]Sulfonyl]Phenyl]Amino]Carbonyl]Phenyl]Azo]-1-Naphthalenesulfonic Acid is a high-purity, reactive dye intermediate and specialty chemical. This compound is valued for its precise molecular structure, which is critical for synthesizing high-performance dyes and pigments with excellent color fastness and stability. It is primarily required by manufacturers in the textile, ink, and specialty chemical industries for producing vibrant and durable colorants.

Application

• Reactive Dye Synthesis: A key intermediate for manufacturing high-quality reactive dyes used in textile coloring, particularly for cotton and other cellulose fibers.
• Pigment Manufacturing: Used in the production of organic pigments for inks, coatings, and plastics that require specific hue and chemical resistance.
• Specialty Chemical Production: Serves as a building block for advanced functional chemicals used in research and high-tech applications.
• Laboratory & Research: Employed as a standard or reagent in chemical research and analytical method development.
• Industrial Colorants: Used in formulating colorants for paper, leather, and other industrial materials.

Basic Information

Product Name	4-Hydroxy-3-[[4-[[[3-[[2-(Sulfooxy)Ethyl]Sulfonyl]Phenyl]Amino]Carbonyl]Phenyl]Azo]-1-Naphthalenesulfonic Acid
CAS No.	72269-58-0
Molecular Formula	C25H20N4O11S3
Molecular Weight	656.64 g/mol
Synonyms	Reactive Red 198; C.I. Reactive Red 198; 1-Naphthalenesulfonic acid, 4-hydroxy-3-((4-((3-((2-sulfooxyethyl)sulfonyl)phenyl)carbamoyl)phenyl)azo)-; Reactive Red HE-3B; Levafix Red CA; 4-Hydroxy-3-((4-((3-((2-sulfooxyethyl)sulfonyl)phenyl)carbamoyl)phenyl)azo)-1-naphthalenesulfonic acid; 72269-58-0; Reactive Dye Intermediate RR-198
EINECS	Contact for details

Quality Control

Our production of 4-Hydroxy-3-[[4-[[[3-[[2-(Sulfooxy)Ethyl]Sulfonyl]Phenyl]Amino]Carbonyl]Phenyl]Azo]-1-Naphthalenesulfonic Acid adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and compliance with customer specifications. Certificates of Analysis (COA) documenting all critical parameters are available upon request.

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 material is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Reddish-brown to dark brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Solubility	Soluble in water, DMF
Heavy Metals	≤ 20 ppm

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