Description

3-[[1-[4-[(4-Amino-3-Methylbenzoyl)Amino]Phenyl]-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-4-Yl]Azo]-5-Chloro-4-Hydroxybenzenesulphonic Acid is a high-purity, complex azo dye intermediate characterized by its specific molecular structure. This compound is essential for synthesizing advanced colorants and pigments, offering precise chromophoric properties critical for achieving target hues and fastness. It is primarily required by manufacturers in the specialty dyes, pigments, and advanced material research sectors, where custom molecular design is paramount.

Application

• Primary Intermediate for High-Performance Dyes and Pigments: Serves as a key building block in the synthesis of specialized azo colorants for textiles, inks, and coatings.
• Functional Dye Synthesis: Used in the production of dyes for technical applications, including those used in imaging and optical data storage.
• Research & Development: A valuable compound for academic and industrial R&D focused on novel chromophore design and photophysical properties.
• Fine Chemical Manufacturing: Employed in multi-step organic synthesis for creating complex molecules with specific light-absorption characteristics.
• Specialty Ink Formulation: Can be utilized in the development of advanced inks requiring specific color stability and performance under various conditions.

Basic Information

Product Name	3-[[1-[4-[(4-Amino-3-Methylbenzoyl)Amino]Phenyl]-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-4-Yl]Azo]-5-Chloro-4-Hydroxybenzenesulphonic Acid
CAS No.	85895-96-1
Molecular Formula	C24H21ClN6O5S
Molecular Weight	540.98 g/mol
Synonyms	Benzenesulfonic acid, 5-chloro-4-hydroxy-3-[[1-[4-[(4-amino-3-methylbenzoyl)amino]phenyl]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]-; 5-Chloro-4-hydroxy-3-({1-[4-({4-amino-3-methylphenyl}carbonylamino)phenyl]-3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-4-yl}azo)benzenesulfonic acid; Azo dye intermediate 85895-96-1; CI 37010 (related class); Light-sensitive azo compound
EINECS	Contact for details

Quality Control

Our production of this advanced intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and purity. Each lot is analyzed using modern analytical techniques, including HPLC and spectroscopic methods, to verify identity and confirm the absence of critical impurities. A comprehensive Certificate of Analysis (COA) detailing all relevant specifications is provided with every shipment to support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep the container tightly sealed to protect from moisture and contamination.

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%
Residue on Ignition (Sulfated Ash)	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 5.0%

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