Description

4-[(3-Methyl-5-Oxo-1-Phenyl-2-Pyrazolin-4-Yl)Azo]Salicylic Acid is a specialized azo dye intermediate, also known as a pyrazolone derivative, with the CAS number 30957-62-1. This compound is valued for its ability to impart specific color properties and act as a key building block in the synthesis of more complex dyes and pigments. It is primarily required by manufacturers in the dyestuff, textile, and specialty chemical industries for producing high-performance colorants.

Application

• Primary Intermediate for Dyes & Pigments: Serves as a crucial precursor in the synthesis of azo dyes, particularly yellow to orange shades, for textiles and plastics.
• Textile Colorant Production: Used in manufacturing dyes for coloring natural and synthetic fibers like cotton, wool, and polyester.
• Specialty Ink Formulation: Employed in the development of high-quality inks for printing and packaging applications.
• Research & Development: Utilized in chemical research labs for studying azo compound reactivity and developing novel chromophores.
• Analytical Chemistry Reagent: Can function as a complexometric agent or indicator in specific analytical methodologies.
• Fine Chemical Synthesis: Acts as a building block for more complex organic molecules in pharmaceutical and agrochemical research.

Basic Information

Product Name	4-[(3-Methyl-5-Oxo-1-Phenyl-2-Pyrazolin-4-Yl)Azo]Salicylic Acid
CAS No.	30957-62-1
Molecular Formula	C17H14N4O4
Molecular Weight	338.32 g/mol
Synonyms	4-[(3-Methyl-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-4-yl)azo]salicylic acid; Salicylic acid, 4-[(3-methyl-5-oxo-1-phenyl-2-pyrazolin-4-yl)azo]-; C.I. 19140; Acid Yellow 11 (related dye class); Pyrazolone Yellow; 4-(3-Methyl-5-oxo-1-phenyl-2-pyrazolin-4-ylazo)salicylic Acid; 1-Phenyl-3-methyl-4-(2-hydroxy-4-carboxyphenylazo)-5-pyrazolone
EINECS	Contact for details

Quality Control

Our production of 4-[(3-Methyl-5-Oxo-1-Phenyl-2-Pyrazolin-4-Yl)Azo]Salicylic Acid adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing to ensure consistent purity, color strength, and chemical identity. Comprehensive Certificates of Analysis (COA) detailing assay, impurity profile, and physical specifications are provided to guarantee compliance with your technical requirements.

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. The product is light-sensitive and should be stored away from direct light exposure to maintain stability.

Specification

Item	Specification
Appearance	Yellow to orange powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 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.