Description

4,5-Dihydro-5-Oxo-4-[[4-[[1-Oxo-3-(Phenylsulphonyl)Propyl]Amino]-2-Sulphophenyl]Azo]-1-(4-Sulphophenyl)-1H-Pyrazole-3-Carboxylic Acid, Potassium Sodium Salt is a high-purity, water-soluble azo pyrazole dye intermediate of significant commercial importance. This compound is valued for its role in synthesizing specialized dyes and pigments with excellent color fastness and stability. It is primarily required by manufacturers in the textile, ink, and specialty chemical industries for producing high-performance colorants.

Application

• Primary Intermediate for Reactive Dyes: A key building block in the synthesis of high-quality reactive dyes for cotton and other cellulosic fibers.
• Specialty Pigment Manufacturing: Used in the production of complex organic pigments for inks, coatings, and plastics requiring specific hue and durability.
• Textile Dyeing and Printing: Serves as a crucial component in formulations for textile printing pastes and dye baths.
• Functional Dye Synthesis: Employed in research and development of functional dyes for non-textile applications, such as in optical materials.
• Chemical Research & Development: Used as a standard or reagent in analytical chemistry and material science research involving colorants.

Basic Information

Item	Details
Product Name	4,5-Dihydro-5-Oxo-4-[[4-[[1-Oxo-3-(Phenylsulphonyl)Propyl]Amino]-2-Sulphophenyl]Azo]-1-(4-Sulphophenyl)-1H-Pyrazole-3-Carboxylic Acid, Potassium Sodium Salt
CAS No.	94158-43-7
Molecular Formula	C26H19KN5NaO12S3
Molecular Weight	767.73 g/mol
Synonyms	Potassium Sodium Salt of C.I. Reactive Orange 107; Reactive Orange 107; 4,5-Dihydro-5-oxo-4-[(4-[(1-oxo-3-(phenylsulfonyl)propyl)amino]-2-sulfophenyl)azo]-1-(4-sulfophenyl)-1H-pyrazole-3-carboxylic acid potassium sodium salt; C.I. 182021; Pyrazole azo dye intermediate; Azo pyrazole carboxylic acid salt; Reactive dye intermediate 94158-43-7
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality management systems to ensure batch-to-batch consistency and high purity. Every lot is analyzed using advanced techniques like HPLC and spectrophotometry to confirm identity and assay. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical specifications is provided with each shipment to support your quality assurance protocols.

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, the container must be kept sealed to minimize exposure to atmospheric moisture. Keep away from incompatible materials.

Specification

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

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