Description

Sodium 5-[(4,5-Dihydro-3-Methyl-5-Oxo-1-Phenyl-1H-Pyrazol-4-Yl)Azo]-4-Hydroxytoluene-3-Sulphonate is a high-purity azo dye intermediate and analytical reagent. This compound is valued for its precise chemical structure and consistent performance as a key building block in specialized synthesis. It is primarily required by manufacturers in the dye and pigment industry, as well as by research and development laboratories for analytical and experimental purposes.

Application

• Primary intermediate for the synthesis of high-value azo dyes and pigments, particularly for coloring textiles and specialty materials.
• Key precursor in the production of reactive dyes used in the textile industry.
• Used as a chromogenic agent or standard in analytical chemistry and biochemical research.
• Potential component in the formulation of specialty inks and toners.
• Employed in research settings for studying azo coupling reactions and dye chemistry.
• May serve as a starting material for functional dyes with applications in non-textile sectors.

Basic Information

Product Name	Sodium 5-[(4,5-Dihydro-3-Methyl-5-Oxo-1-Phenyl-1H-Pyrazol-4-Yl)Azo]-4-Hydroxytoluene-3-Sulphonate
CAS No.	6232-55-9
Molecular Formula	C17H14N4NaO5S
Molecular Weight	409.37 g/mol
Synonyms	5-[(4,5-Dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-4-hydroxy-2-methylbenzenesulfonic acid sodium salt; Acid Yellow 117; C.I. 24820; Sodium 4-hydroxy-5-[(3-methyl-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-4-yl)azo]-2-methylbenzenesulfonate; 4-Hydroxy-5-[(3-methyl-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-4-yl)azo]-2-methylbenzenesulfonic acid sodium salt; 1-Phenyl-3-methyl-4-(4-sulfo-2-methylphenylazo)-5-pyrazolone sodium salt
EINECS	228-342-1

Quality Control

Our Sodium 5-[(4,5-Dihydro-3-Methyl-5-Oxo-1-Phenyl-1H-Pyrazol-4-Yl)Azo]-4-Hydroxytoluene-3-Sulphonate is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting key parameters such as assay, impurity profile, and physical characteristics to meet your specific application requirements.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Orange to brownish powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Residue on Ignition (Sulfated Ash)	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 3.0%
Solubility (1% in Water)	Clear, orange solution

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