Description

Sodium p-[(4,5-Dihydro-3-Methyl-5-Oxo-1-Phenyl-1H-Pyrazol-4-Yl)Azo]Benzenesulphonate is a high-purity azo dye intermediate and analytical reagent. This compound is valued for its precise chemical structure, which provides consistent performance in specialized synthesis and colorimetric applications. It is primarily required by manufacturers in the fine chemical, dye, and research sectors for producing specialized pigments and as a reagent in analytical chemistry.

Application

• Dye and Pigment Intermediate: A key precursor in the synthesis of specific azo dyes and pigments for textiles, inks, and coatings.
• Analytical Reagent: Used in laboratory settings for colorimetric analysis and as a complexometric indicator in certain titrations.
• Fine Chemical Synthesis: Serves as a building block in the production of more complex organic molecules for pharmaceutical and agrochemical research.
• Research & Development: Utilized in academic and industrial R&D for studying azo compound chemistry and photophysical properties.
• Specialty Colorants: Potential use in the formulation of specialty colorants for non-textile applications such as plastics or paper.

Basic Information

Product Name	Sodium p-[(4,5-Dihydro-3-Methyl-5-Oxo-1-Phenyl-1H-Pyrazol-4-Yl)Azo]Benzenesulphonate
CAS No.	6359-74-6
Molecular Formula	C16H13N4NaO4S
Molecular Weight	380.35 g/mol
Synonyms	Sodium 4-[(4,5-Dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]benzenesulfonate; Acid Yellow 117; C.I. 24820; 1-Phenyl-3-methyl-4-(4-sulfophenylazo)-5-pyrazolone sodium salt; 4-[(4,5-Dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]benzenesulfonic acid sodium salt; Pyrazolone Yellow; Azo Yellow PY
EINECS	228-782-1

Quality Control

Our Sodium p-[(4,5-Dihydro-3-Methyl-5-Oxo-1-Phenyl-1H-Pyrazol-4-Yl)Azo]Benzenesulphonate is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is available for every shipment to support your quality assurance and regulatory needs.

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, protect from moisture and store under inert conditions if the container is opened frequently.

Specification

Item	Specification
Appearance	Yellow to orange-yellow powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (1% in Water)	Clear, yellow solution

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