Description

4-(8-Hydroxy-5-Quinolylazo)-1-Naphthalenesulfonic Acid is a specialized azo dye intermediate and analytical reagent. This compound matters for its role as a key precursor in synthesizing high-performance dyes and pigments, as well as its utility in colorimetric detection methods. Industries that need it include manufacturers of specialty dyes, research laboratories developing chemical sensors, and producers of analytical reagents for metal ion detection.

Application

• Dye and Pigment Synthesis: A crucial intermediate for producing complex azo dyes and pigments used in textiles, inks, and specialty coatings.
• Analytical Chemistry Reagent: Employed as a chromogenic agent in colorimetric assays and sensors for the detection of specific metal ions.
• Research & Development: Used in academic and industrial R&D for studying azo coupling reactions and developing new functional materials.
• Photographic Chemicals: Potential application in the formulation of light-sensitive layers for specialized photographic processes.
• Biological Staining: Can be utilized as a histological stain or in biochemical staining protocols due to its chromophoric properties.
• Chemical Intermediate: Serves as a building block for more complex quinoline and naphthalene derivatives in fine chemical synthesis.

Basic Information

Product Name	4-(8-Hydroxy-5-Quinolylazo)-1-Naphthalenesulfonic Acid
CAS No.	26644-96-2
Molecular Formula	C19H13N3O4S
Molecular Weight	379.39 g/mol
Synonyms	1-Naphthalenesulfonic acid, 4-[(8-hydroxy-5-quinolinyl)azo]-; 4-[(8-Hydroxy-5-quinolyl)azo]-1-naphthalenesulfonic acid; 5-(4-Sulfo-1-naphthylazo)-8-hydroxyquinoline; 8-Hydroxy-5-(4-sulfo-1-naphthylazo)quinoline; Azo dye intermediate 26644-96-2; C.I. Mordant Yellow; Acid Yellow (related class); Quinoline Yellow derivative
EINECS	Contact for details

Quality Control

Our 4-(8-Hydroxy-5-Quinolylazo)-1-Naphthalenesulfonic Acid is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing specifications such as assay (HPLC), impurity profile, and physical characteristics is provided with every shipment to guarantee it meets your research or production requirements.

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 (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture.

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%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility	Soluble in alkaline aqueous solutions

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