Description

1-(2,5-Disulphophenyl)-4,5-Dihydro-5-Oxo-1H-Pyrazole-3-Carboxylic Acid is a specialized pyrazole derivative characterized by its disulfonated aromatic ring and carboxylic acid functionality. This compound is valued for its role as a key synthetic intermediate in the production of high-performance dyes, pigments, and functional chemicals. It is primarily sought by manufacturers in the dyestuff, textile chemical, and advanced material synthesis industries.

Application

• Dye and Pigment Intermediate: A crucial building block for synthesizing reactive, acid, and direct dyes, particularly yellow and orange shades.
• Textile Chemical Synthesis: Used in the manufacture of specialized chemicals for textile printing and functional finishing.
• Optical Brightener Precursor: Serves as an intermediate in the production of certain classes of fluorescent whitening agents.
• Pharmaceutical Intermediate: Potential use in the synthesis of pharmacologically active pyrazole-containing compounds.
• Research & Development: Employed in academic and industrial R&D for exploring new heterocyclic compounds and their properties.
• Specialty Chemical Manufacturing: A key raw material for producing performance chemicals with specific ionic or chromophoric properties.

Basic Information

Product Name	1-(2,5-Disulphophenyl)-4,5-Dihydro-5-Oxo-1H-Pyrazole-3-Carboxylic Acid
CAS No.	6411-56-9
Molecular Formula	C10H8N2O8S2
Molecular Weight	348.31 g/mol
Synonyms	5-Oxo-1-(2,5-disulfophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylic acid; 1-(2,5-Disulfophenyl)-4,5-dihydro-5-oxo-1H-pyrazole-3-carboxylic Acid; Pyrazolone derivative DSDP; 3-Carboxy-1-(2,5-disulfophenyl)-5-pyrazolone; 6411-56-9; 1H-Pyrazole-3-carboxylic acid, 4,5-dihydro-5-oxo-1-(2,5-disulfophenyl)-
EINECS	Contact for details

Quality Control

Our production of 1-(2,5-Disulphophenyl)-4,5-Dihydro-5-Oxo-1H-Pyrazole-3-Carboxylic Acid adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and meet customer specifications. Certificates of Analysis (COA) documenting all critical parameters are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place 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.

Specification

Item	Specification
Appearance	Yellow to light brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 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.