Description

Sodium p-[4,5-Dihydro-4-[(2-Hydroxy-5-Methyl-3-Nitrophenyl)Azo]-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulphonate is a high-purity, water-soluble azo dye intermediate of significant commercial importance. Its precise chemical structure is engineered to deliver consistent color properties and reactivity, making it a critical component for producing specialized dyes and pigments. This compound is essential for manufacturers in the textile, ink, and specialty chemical industries seeking reliable intermediates for high-performance colorants.

Application

• Primary Intermediate for Azo Dyes: Serves as a key building block in the synthesis of high-value, complex azo dyes for textiles and leather.
• Specialty Pigment Manufacturing: Used in the production of pigments for inks, coatings, and plastics requiring specific color fastness and stability.
• Research & Development: Employed in chemical R&D for developing novel chromophores and functional dyes with tailored properties.
• Analytical Chemistry: Can be utilized as a reagent or standard in analytical methods for dye identification and quantification.

Basic Information

Product Name	Sodium p-[4,5-Dihydro-4-[(2-Hydroxy-5-Methyl-3-Nitrophenyl)Azo]-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulphonate
CAS No.	61931-83-7
Molecular Formula	C23H18N5NaO7S
Molecular Weight	531.47 g/mol
Synonyms	Sodium 4-[4,5-dihydro-4-[(2-hydroxy-5-methyl-3-nitrophenyl)azo]-3-methyl-5-oxo-1H-pyrazol-1-yl]benzenesulfonate; Benzenesulfonic acid, 4-[4,5-dihydro-4-[(2-hydroxy-5-methyl-3-nitrophenyl)azo]-3-methyl-5-oxo-1H-pyrazol-1-yl]-, sodium salt; Azo dye intermediate 61931-83-7; Light-sensitive azo compound
EINECS	Contact for details

Quality Control

Our production of Sodium p-[4,5-Dihydro-4-[(2-Hydroxy-5-Methyl-3-Nitrophenyl)Azo]-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulphonate adheres to stringent quality management protocols to ensure batch-to-batch consistency and purity. All materials are subjected to comprehensive analytical testing, including HPLC and spectroscopic methods. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials such as strong oxidizing agents. Due to its light-sensitive nature, containers should be opaque or stored in darkness.

Specification

Item	Specification
Appearance	Orange to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm

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