Description

Ammonium 3-[(1-Hydroxy-2-Naphthyl)Azo]Benzenesulphonate is an azo dye intermediate and analytical reagent known for its specific chelating properties. This compound is valued for its role in producing vivid, stable colors and its utility in precise chemical detection methods. It is primarily required by manufacturers in the dye and pigment industry, as well as by laboratories for use as a metallochromic indicator in complexometric titrations.

Application

• Primary Intermediate for Azo Dyes and Pigments: A key building block in the synthesis of orange to red shades for textiles, inks, and plastics.
• Metallochromic Indicator: Used in analytical chemistry for the complexometric titration of metal ions such as calcium and magnesium.
• Research & Development Chemical: Employed in academic and industrial R&D for developing new colorants and sensing materials.
• Specialty Chemical Manufacturing: Serves as a precursor for functional dyes used in non-textile applications.

Basic Information

Product Name	Ammonium 3-[(1-Hydroxy-2-Naphthyl)Azo]Benzenesulphonate
CAS No.	83006-61-5
Molecular Formula	C₁₇H₁₆N₄O₄S
Molecular Weight	372.40 g/mol
Synonyms	Ammonium 3-[(1-Hydroxy-2-naphthyl)azo]benzenesulfonate; 2-Naphthol-1-azo-4'-benzenesulfonic acid ammonium salt; 1-(3-Sulfophenylazo)-2-naphthol ammonium salt; Acid Orange 20 Ammonium Salt; C.I. 14600 Ammonium Salt; 3-[(1-Hydroxy-2-naphthalenyl)azo]benzenesulfonic acid ammonium salt; Ammonium 3-[(1-oxido-2-naphthyl)azo]benzenesulfonate
EINECS	Contact for details

Quality Control

Our Ammonium 3-[(1-Hydroxy-2-Naphthyl)Azo]Benzenesulphonate is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. A Certificate of Analysis (COA) detailing specifications and results is provided with each shipment 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Orange to red-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in water)	Clear, orange solution

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