Description

p-[5-Amino-4-[[2-Methoxy-5-[[2-(Sulphooxy)Ethyl]Sulphonyl]Phenyl]Azo]-3-Methyl-1H-Pyrazol-1-Yl]Benzenesulphonic Acid is a high-purity, water-soluble azo dye intermediate characterized by its reactive sulphonic acid and sulphooxyethyl groups. This compound is engineered to provide exceptional chromophore stability and coupling efficiency in demanding synthesis processes. It is primarily required by manufacturers in the textile, ink, and specialty polymer industries for producing vivid and durable colorants.

Application

• Reactive Dye Synthesis: A key intermediate for manufacturing high-performance reactive dyes for cotton and cellulose fibers.
• Acid Dye Production: Used in the synthesis of acid dyes for coloring wool, silk, and nylon.
• Inkjet Ink Formulation: Serves as a precursor for pigments in high-quality digital printing inks.
• Functional Polymer Modification: Imparts color and ionic functionality to specialty polymers and resins.
• Biological Staining Agent: Potential use in the development of histological stains and diagnostic reagents.
• Research & Development: Employed in chemical research for novel chromophore and material science studies.

Basic Information

Product Name	p-[5-Amino-4-[[2-Methoxy-5-[[2-(Sulphooxy)Ethyl]Sulphonyl]Phenyl]Azo]-3-Methyl-1H-Pyrazol-1-Yl]Benzenesulphonic Acid
CAS No.	24353-00-2
Molecular Formula	C19H21N5O10S2
Molecular Weight	543.53 g/mol
Synonyms	Benzenesulfonic acid, p-[5-amino-4-[[2-methoxy-5-[[2-(sulphooxy)ethyl]sulphonyl]phenyl]azo]-3-methyl-1H-pyrazol-1-yl]-; 24353-00-2; Reactive Dye Intermediate; Azo Pyrazole Sulfonic Acid Derivative; 1H-Pyrazole-1-benzenesulfonic acid, 5-amino-4-[[2-methoxy-5-[(2-sulfooxy)ethyl]sulfonyl]phenyl]azo]-3-methyl-; Acid Black 210 intermediate
EINECS	Contact for details

Quality Control

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

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 sealed to minimize exposure to atmospheric moisture. Keep away from incompatible materials such as strong oxidizing agents.

Specification

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

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