Description

4-[4,5-Dihydro-3-Methyl-4-[(4-Methylphenyl)Azo]-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulfonic Acid Sodium Salt is a high-purity azo dye intermediate and specialty chemical compound. This product is valued for its precise chemical structure, which is critical for synthesizing specific colorants and functional materials. It is primarily required by manufacturers in the dye and pigment, textile, and advanced materials research sectors for its role in creating vivid and stable colors.

Application

• Primary intermediate for the synthesis of high-performance azo dyes and pigments.
• Key component in the production of colorants for textile fibers and fabrics.
• Used in the formulation of specialized inks for printing applications.
• Potential precursor in the research and development of functional organic materials.
• Employed in analytical chemistry as a reference standard or reagent.
• May find use in the coloration of plastics and polymers.

Basic Information

Product Name	4-[4,5-Dihydro-3-Methyl-4-[(4-Methylphenyl)Azo]-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulfonic Acid Sodium Salt
CAS No.	6359-84-8
Molecular Formula	C17H15N4NaO4S
Molecular Weight	394.38 g/mol
Synonyms	Sodium 4-[4,5-dihydro-3-methyl-4-[(4-methylphenyl)azo]-5-oxo-1H-pyrazol-1-yl]benzenesulfonate; Benzenesulfonic acid, 4-[4,5-dihydro-3-methyl-4-[(4-methylphenyl)azo]-5-oxo-1H-pyrazol-1-yl]-, sodium salt; C.I. Acid Yellow 117; Acid Yellow 117; Azo dye intermediate YA; 4-(4,5-Dihydro-3-methyl-4-((4-methylphenyl)azo)-5-oxo-1H-pyrazol-1-yl)benzenesulfonic acid sodium salt
EINECS	228-783-8

Quality Control

Our 4-[4,5-Dihydro-3-Methyl-4-[(4-Methylphenyl)Azo]-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulfonic Acid Sodium Salt is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for identity, purity, and composition. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee traceability and batch-to-batch consistency.

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 nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product quality and performance.

Specification

Item	Specification
Appearance	Yellow to orange-yellow powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition (Sulfated Ash)	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%

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