Description

p-[4,5-Dihydro-4-[[2-Methoxy-5-Methyl-4-[[2-(Sulphooxy)Ethyl]Sulphonyl]Phenyl]Azo]-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulphonic Acid, Potassium Sodium Salt is a high-purity, water-soluble anionic dye intermediate characterized by its complex azo-pyrazolone structure. This compound is valued for its role in synthesizing specialized dyes and pigments with excellent color fastness and application properties. It is primarily utilized by manufacturers in the textile, ink, and specialty coatings industries seeking to develop high-performance colorants.

Application

• Textile Dyeing: A key intermediate for the synthesis of reactive and acid dyes used on natural and synthetic fibers like cotton, wool, and nylon.
• Ink Formulation: Used in the production of colorants for various printing inks, including those for packaging and security applications.
• Specialty Coatings: Serves as a precursor for pigments in industrial and automotive coatings requiring specific hue and stability.
• Functional Dyes: Potential intermediate for dyes used in non-textile applications such as lasers, optical data storage, or biomedical staining.
• Research & Development: Employed in chemical research for developing novel chromophores and studying structure-property relationships in dye chemistry.

Basic Information

Product Name	p-[4,5-Dihydro-4-[[2-Methoxy-5-Methyl-4-[[2-(Sulphooxy)Ethyl]Sulphonyl]Phenyl]Azo]-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulphonic Acid, Potassium Sodium Salt
CAS No.	85567-08-4
Molecular Formula	C20H19KN4NaO11S3 (Contact for exact isomer details)
Molecular Weight	Approx. 672.7 g/mol (Contact for details)
Synonyms	Benzenesulfonic acid, 4-[4,5-dihydro-4-[[2-methoxy-5-methyl-4-[(2-sulfooxyethyl)sulfonyl]phenyl]azo]-3-methyl-5-oxo-1H-pyrazol-1-yl]-, potassium sodium salt; Potassium sodium 4-[4,5-dihydro-4-{[2-methoxy-5-methyl-4-({2-[(sulfonatooxy)ethyl]sulfonyl}phenyl)azo]-3-methyl-5-oxo-1H-pyrazol-1-yl}benzenesulfonate; Azo pyrazolone dye intermediate; Reactive dye intermediate 85567-08-4; Acid dye intermediate CAS 85567-08-4
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. Each lot undergoes comprehensive analytical testing, including HPLC for assay and impurity profiling and spectroscopic identification (IR, UV-Vis). A detailed Certificate of Analysis (COA) documenting purity, identity, and relevant physical parameters 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 nature, the container must be kept tightly sealed after opening to minimize exposure to atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Powder (Color varies by grade)
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0% (Contact for higher grades)
Water Content (KF)	≤ 5.0%
Solubility (in Water)	Clear solution at 1%
Heavy Metals (as Pb)	≤ 20 ppm

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