Description

4-Hydroxy-3-[(2-Hydroxy-1-Naphthyl)Azo]Benzenesulphonamide is an azo dye intermediate and analytical reagent characterized by its distinct molecular structure. This compound is valued for its ability to form stable complexes with metal ions, making it a critical component in specialized colorimetric detection and analysis. It is primarily utilized by manufacturers and research laboratories in the chemical, analytical, and specialty dye industries.

Application

• Analytical Reagent: Used as a chromogenic agent in the spectrophotometric determination and complexometric titration of various metal ions.
• Dye Intermediate: Serves as a key precursor in the synthesis of specific azo dyes and pigments for industrial applications.
• Research & Development: Employed in chemical research for developing new colorimetric sensors and detection methodologies.
• Laboratory Standards: Utilized in the preparation of reference standards for analytical quality control and calibration.

Basic Information

Product Name	4-Hydroxy-3-[(2-Hydroxy-1-Naphthyl)Azo]Benzenesulphonamide
CAS No.	16432-45-4
Molecular Formula	C₁₇H₁₃N₃O₄S
Molecular Weight	355.37 g/mol
Synonyms	Benzenesulfonamide, 4-hydroxy-3-[(2-hydroxy-1-naphthalenyl)azo]-; 3-[(2-Hydroxy-1-naphthyl)azo]-4-hydroxybenzenesulfonamide; 1-Naphthol-2-azo-4'-hydroxybenzenesulfonamide; Acid Chrome Blue K; Mordant Blue 1 related compound; Azo dye intermediate C.I. 15705; C.I. Mordant Blue 1 variant
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. We employ advanced analytical techniques, including HPLC and spectrophotometry, to verify identity, purity, and performance. 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 area at room temperature (15-25°C). Keep away from incompatible materials. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided.

Specification

Item	Specification
Appearance	Orange to brownish-red 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

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