Description

4-[(5-Amino-2-Sulphophenyl)Azo]-4,5-Dihydro-5-Oxo-1-(4-Sulphophenyl)-1H-Pyrazole-3-Carboxylic Acid CAS NO 63400-64-6 is a high-purity, water-soluble azo pyrazole carboxylic acid derivative. This compound is valued for its role as a key chemical intermediate in the synthesis of specialized dyes and pigments, offering excellent color properties and structural stability. It is primarily sought after by manufacturers in the dyestuff, textile, and specialty chemical industries for producing vibrant and durable colorants.

Application

• Primary Intermediate for Dyes & Pigments: A crucial building block in the synthesis of high-performance azo dyes, particularly for textiles, leather, and paper.
• Textile Colorant Production: Used to manufacture reactive and direct dyes that offer excellent wash and light fastness on cotton and other cellulosic fibers.
• Specialty Chemical Synthesis: Serves as a precursor for creating complex organic molecules used in research and advanced material science.
• Functional Dye Manufacturing: Potential use in the production of dyes for non-textile applications, such as inks and functional coatings.
• Laboratory & Research Reagent: Used in chemical research for studying azo coupling reactions and developing new chromophoric systems.

Basic Information

Product Name	4-[(5-Amino-2-Sulphophenyl)Azo]-4,5-Dihydro-5-Oxo-1-(4-Sulphophenyl)-1H-Pyrazole-3-Carboxylic Acid
CAS No.	63400-64-6
Molecular Formula	C16H13N5O8S2
Molecular Weight	467.43 g/mol
Synonyms	5-Amino-4-hydroxy-3-[(2-sulfo-4-aminophenyl)azo]-1-(4-sulfophenyl)-1H-pyrazole-4-carboxylic acid; Acid Yellow 117 (C.I. 24820); C.I. Acid Yellow 117; 1H-Pyrazole-3-carboxylic acid, 4,5-dihydro-5-oxo-4-[(2-sulfo-5-aminophenyl)azo]-1-(4-sulfophenyl)-; Pyrazolone derivative AY 117; Azo pyrazole carboxylic acid intermediate; 4-[(5-Amino-2-sulfophenyl)azo]-4,5-dihydro-5-oxo-1-(4-sulfophenyl)-1H-pyrazole-3-carboxylic acid
EINECS	Contact for details

Quality Control

Every batch of 4-[(5-Amino-2-Sulphophenyl)Azo]-4,5-Dihydro-5-Oxo-1-(4-Sulphophenyl)-1H-Pyrazole-3-Carboxylic Acid is manufactured under a strict quality management system. Our products undergo rigorous quality testing, including advanced chromatographic analysis, to ensure high purity and batch-to-batch consistency suitable for industrial synthesis. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent absorption of atmospheric moisture, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Yellow to orange-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content	≤ 5.0%
Sulfated Ash	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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