Description

4,5-Dihydro-5-Oxo-4-[(3-Phosphonophenyl)Azo]-1-(4-Sulphophenyl)-1H-Pyrazole-3-Carboxylic Acid, Ammonium Sodium Salt is a high-purity, water-soluble azo pyrazole dye intermediate. This compound is valued for its unique molecular structure, which incorporates phosphonic and sulphonic acid groups, offering excellent chelating properties and solubility. It is primarily sought after by manufacturers in the specialty chemicals sector for the synthesis of advanced dyes, pigments, and functional materials.

Application

• Dye and Pigment Synthesis: A key intermediate for producing high-performance azo dyes and pigments with enhanced lightfastness and water solubility.
• Textile Chemicals: Used in the formulation of specialized textile dyes and printing inks, particularly where metal complexation is required.
• Functional Materials: Serves as a building block for creating functional polymers and coatings that benefit from its phosphonate groups for adhesion or corrosion inhibition.
• Analytical Reagents: Potential use as a chelating agent or colorimetric indicator in analytical chemistry due to its azo and phosphonate functionalities.
• Research & Development: Employed in chemical research for developing new chromophores and studying structure-property relationships in dye chemistry.

Basic Information

Product Name	4,5-Dihydro-5-Oxo-4-[(3-Phosphonophenyl)Azo]-1-(4-Sulphophenyl)-1H-Pyrazole-3-Carboxylic Acid, Ammonium Sodium Salt
CAS No.	85068-58-2
Molecular Formula	C16H15N4O9PS2•xNa•yNH4
Molecular Weight	Contact for details
Synonyms	Acid Red 337; C.I. 17915; 4,5-Dihydro-5-oxo-4-[(3-phosphonophenyl)azo]-1-(4-sulfophenyl)-1H-pyrazole-3-carboxylic acid, ammonium sodium salt; Ammonium sodium 4,5-dihydro-5-oxo-4-[(3-phosphonophenyl)azo]-1-(4-sulfophenyl)-1H-pyrazole-3-carboxylate; Azo pyrazole phosphonate dye intermediate; 1-(4-Sulfophenyl)-4-[(3-phosphonophenyl)azo]-5-pyrazolone-3-carboxylic acid ammonium sodium salt
EINECS	Contact for details

Quality Control

Our production of 4,5-Dihydro-5-Oxo-4-[(3-Phosphonophenyl)Azo]-1-(4-Sulphophenyl)-1H-Pyrazole-3-Carboxylic Acid, Ammonium Sodium Salt adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and compliance with customer specifications. Certificates of Analysis (COA) detailing purity, impurity profile, and physical characteristics are provided with each shipment.

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 sealed to prevent absorption of atmospheric moisture, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	Orange to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Heavy Metals	≤ 20 ppm
Solubility (Water)	Freely soluble

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