Description

4-Hydroxy-7-[[1-Oxo-3-(Phenylsulphonyl)Propyl]Amino]-3-[(4-Sulphophenyl)Azo]Naphthalene-2-Sulphonic Acid, Potassium Sodium Salt is a high-purity, water-soluble azo dye intermediate. This compound is valued for its role in synthesizing specialized 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 high-performance colorants.

Application

• Primary Intermediate for Reactive Dyes: Key building block in the synthesis of high-quality reactive dyes for cotton and other cellulosic fibers.
• Specialty Pigment Manufacturing: Used in the production of complex organic pigments for inks, coatings, and plastics.
• Textile Colorant Synthesis: Essential for creating dyes with specific shades, particularly in the red to violet spectrum, offering good wash and light fastness.
• Research & Development: Serves as a critical reagent in chemical R&D for developing new chromophores and functional dyes.
• Analytical Chemistry: Can be utilized as a staining agent or a colorimetric indicator in specific analytical procedures.
• Functional Material Production: Potential use in the synthesis of dyes for non-textile applications, such as in optical data storage or solar cells.

Basic Information

Item	Details
Product Name	4-Hydroxy-7-[[1-Oxo-3-(Phenylsulphonyl)Propyl]Amino]-3-[(4-Sulphophenyl)Azo]Naphthalene-2-Sulphonic Acid, Potassium Sodium Salt
CAS No.	93803-31-7
Molecular Formula	C25H19KN3NaO10S3
Molecular Weight	Contact for details
Synonyms	Potassium Sodium 4-Hydroxy-7-[[1-oxo-3-(phenylsulfonyl)propyl]amino]-3-[(4-sulfophenyl)azo]naphthalene-2-sulfonate; C.I. Reactive Red 198; Reactive Red 198; Reactive Brilliant Red M-3BE; Reactive Brilliant Red M-3BE (C.I. 18221); 4-Hydroxy-7-[[1-oxo-3-(phenylsulfonyl)propyl]amino]-3-[(4-sulfophenyl)azo]-2-naphthalenesulfonic acid potassium sodium salt; 18221; C.I. 18221
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality management systems to ensure batch-to-batch consistency and purity. Quality is verified through advanced analytical techniques including HPLC, UV-Vis spectroscopy, and elemental analysis. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance protocols.

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 (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture, which can affect product performance and stability.

Specification

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

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