Description

Sodium 2-[(2-Hydroxynaphthyl)Azo]Naphthalenesulphonate is a high-purity azo dye intermediate and analytical reagent. This compound is valued for its precise chemical structure, which is critical for producing consistent coloration and for use in sensitive detection methods. It is primarily required by manufacturers in the dye and pigment industry, as well as by research and quality control laboratories for analytical applications.

Application

• Key intermediate in the synthesis of azo dyes and pigments for textiles, inks, and plastics.
• Used as a colorimetric reagent and indicator in analytical chemistry for metal ion detection.
• Employed in the development of specialty dyes for biological staining and histology.
• Component in the formulation of functional dyes for optical data storage and non-linear optics.
• Research chemical for studying azo compound synthesis and reactivity.
• Potential use in the preparation of dye-sensitized materials for solar cells and sensors.

Basic Information

Product Name	Sodium 2-[(2-Hydroxynaphthyl)Azo]Naphthalenesulphonate
CAS No.	1248-18-6
Molecular Formula	C₂₀H₁₃N₂NaO₄S
Molecular Weight	400.38 g/mol
Synonyms	Acid Orange 20; C.I. 14600; Sodium 2-(2-hydroxy-1-naphthylazo)naphthalene-1-sulphonate; 2-(2-Hydroxy-1-naphthylazo)-1-naphthalenesulfonic Acid Sodium Salt; 1-Naphthalenesulfonic acid, 2-[(2-hydroxy-1-naphthyl)azo]-, sodium salt; Orange GGN; Acid Leather Orange PG
EINECS	214-991-5

Quality Control

Our Sodium 2-[(2-Hydroxynaphthyl)Azo]Naphthalenesulphonate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC and spectrophotometric methods, to ensure high purity and batch-to-batch consistency. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents.

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	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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