Description

3-[(1-Butyl-1,2-Dihydro-4-Hydroxy-2-Oxo-3-Quinolyl)Azo]-5-Chloro-2-Hydroxybenzenesulphonic Acid is a specialized azo dye intermediate known for its complex molecular structure, which imparts specific colorant and functional properties. This compound is valued for its role in synthesizing high-performance pigments and dyes with excellent lightfastness and chemical stability. It is primarily required by manufacturers in the pigments, dyes, and specialty chemical industries for producing advanced colorants used in inks, coatings, and plastics.

Application

• Primary Intermediate for High-Performance Pigments: A key building block in the synthesis of complex organic pigments, particularly quinacridone and azo-based types.
• Specialty Dye Manufacturing: Used in the production of dyes for industrial applications requiring specific shades and durability.
• Functional Colorants for Polymers: Imparts color to engineering plastics and high-grade synthetic fibers where thermal stability is crucial.
• Ink Formulations: Serves as a colorant component in specialty printing inks, including those for security and packaging.
• Research & Development: Utilized in chemical R&D for developing new chromophores and studying structure-property relationships in dye chemistry.
• Analytical Reagent: Can be employed as a staining agent or a complexometric indicator in specific laboratory analyses.

Basic Information

Product Name	3-[(1-Butyl-1,2-Dihydro-4-Hydroxy-2-Oxo-3-Quinolyl)Azo]-5-Chloro-2-Hydroxybenzenesulphonic Acid
CAS No.	24014-78-6
Molecular Formula	C19H18ClN3O6S
Molecular Weight	451.88 g/mol
Synonyms	5-Chloro-2-hydroxy-3-[(1-butyl-4-hydroxy-2-oxo-1,2-dihydro-3-quinolyl)azo]benzenesulfonic acid; Benzenesulfonic acid, 5-chloro-2-hydroxy-3-[(1-butyl-4-hydroxy-2-oxo-1,2-dihydro-3-quinolyl)azo]-; C.I. Pigment Yellow 138 intermediate; Quinoline Yellow intermediate; Azo quinoline dye intermediate; 3-[(1-Butyl-1,2-dihydro-4-hydroxy-2-oxo-3-quinolinyl)azo]-5-chloro-2-hydroxybenzenesulfonic acid
EINECS	Contact for details

Quality Control

Our production of 3-[(1-Butyl-1,2-Dihydro-4-Hydroxy-2-Oxo-3-Quinolyl)Azo]-5-Chloro-2-Hydroxybenzenesulphonic Acid adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and industry standards. Certificates of Analysis (COA) documenting all critical parameters are available upon request 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 a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to minimize exposure to atmospheric humidity. 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	≤ 2.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 3.0%

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