Description

Sodium 3-[(1-Butyl-1,2-Dihydro-4-Hydroxy-2-Oxo-3-Quinolyl)Azo]-5-Chloro-2-Hydroxybenzenesulphonate is a specialized azo dye intermediate known for its distinct chromophoric properties. This compound matters for its role in synthesizing high-performance colorants with specific lightfastness and hue characteristics. It is primarily needed by manufacturers in the dye and pigment industries, particularly for producing complex, high-value dyes used in textiles, inks, and specialty coatings. Its precise chemical structure allows for fine-tuning of color properties in demanding applications.

Application

• Key intermediate for the synthesis of high-performance azo dyes and pigments.
• Used in the production of colorants for textile dyeing and printing processes.
• Manufacture of specialty inks, including those for packaging and security printing applications.
• Potential use in the formulation of functional dyes for optical or electronic applications.
• Research and development of novel chromophores in academic and industrial laboratories.
• Production of colorants for leather and paper.

Basic Information

Product Name	Sodium 3-[(1-Butyl-1,2-Dihydro-4-Hydroxy-2-Oxo-3-Quinolyl)Azo]-5-Chloro-2-Hydroxybenzenesulphonate
CAS No.	6359-71-3
Molecular Formula	C19H17ClN3NaO6S
Molecular Weight	473.86 g/mol
Synonyms	Acid Orange 67; C.I. 14172; Sodium 5-chloro-2-hydroxy-3-[(1-butyl-4-hydroxy-2-oxo-1,2-dihydro-3-quinolyl)azo]benzenesulfonate; Benzenesulfonic acid, 5-chloro-2-hydroxy-3-[(1-butyl-4-hydroxy-2-oxo-1,2-dihydro-3-quinolyl)azo]-, sodium salt; 3-[(1-Butyl-1,2-dihydro-4-hydroxy-2-oxo-3-quinolyl)azo]-5-chloro-2-hydroxybenzenesulfonic acid sodium salt; C.I. Acid Orange 67; Acid Leather Orange PG; Dermina Orange G
EINECS	228-780-4

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. Production is monitored against strict in-house specifications for identity, purity, and chromatic strength. Certificates of Analysis (COA) detailing batch-specific results are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Orange to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
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.