Description

2-[[1-(4-aminophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]-5-[[3-[[1-(4-aminophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]-4-hydroxybenzoyl]amino]benzoic acid is a high-purity, complex azo dye intermediate designed for advanced colorant synthesis. This compound is critical for manufacturers requiring precise molecular structures to achieve specific, high-performance color properties in demanding applications. It is primarily utilized by the specialty dyes and pigments industry for the production of sophisticated colorants used in textiles, inks, and advanced materials.

Application

• Synthesis of High-Performance Azo Dyes: A key intermediate for creating complex, high-molecular-weight azo dyes with enhanced color fastness and brightness.
• Textile Dye Manufacturing: Used in the production of specialized dyes for synthetic and natural fibers requiring specific shade and durability profiles.
• Industrial Ink Pigments: Serves as a precursor for pigments used in printing inks, including those for packaging and security applications.
• Functional Colorants: Potential intermediate for dyes used in non-textile applications such as lasers, optical data storage, or liquid crystal displays (LCDs).
• Research & Development: A valuable building block for chemical research in organic synthesis, dye chemistry, and material science.

Basic Information

Item	Details
Product Name	2-[[1-(4-aminophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]-5-[[3-[[1-(4-aminophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]-4-hydroxybenzoyl]amino]benzoic acid
CAS No.	67827-63-8
Molecular Formula	C39H30N10O6
Molecular Weight	734.73 g/mol
Synonyms	Benzoic acid, 2-[[1-(4-aminophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]-5-[[3-[[1-(4-aminophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]-4-hydroxybenzoyl]amino]-; CI 26050; Disperse Yellow 119; Azo dye intermediate 67827-63-8; 2,5-Bis(1-(4-aminophenyl)-3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-4-yl)azobenzoic acid derivative
EINECS	Contact for details

Quality Control

Our production of this advanced intermediate adheres to strict quality management systems to ensure batch-to-batch consistency and purity. Each lot undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to support your quality assurance and regulatory compliance needs.

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). Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Orange to brown powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents (GC)	Meets ICH guidelines

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