Description

Sodium 4-Hydroxy-3-[(2-Hydroxy-5-Nitrophenyl)Azo](Phenylamino)Naphthalene-2-Sulphonate is a high-purity azo dye intermediate and specialty chemical compound. This product is valued for its precise chemical structure, which is critical for producing consistent and vibrant colorants in demanding applications. It is primarily required by manufacturers in the dye and pigment industries, as well as by research and development laboratories focusing on advanced material science and analytical chemistry.

Application

• Primary intermediate for the synthesis of high-performance azo dyes and pigments.
• Used in the coloration of textiles, leather, and specialty papers.
• Key component in the formulation of inks for digital and industrial printing.
• Acts as a chemical reagent and chromogenic agent in analytical chemistry and research.
• Potential use in the development of functional dyes for optical applications and sensors.
• Employed in quality control laboratories as a reference standard for dye analysis.

Basic Information

Product Name	Sodium 4-Hydroxy-3-[(2-Hydroxy-5-Nitrophenyl)Azo](Phenylamino)Naphthalene-2-Sulphonate
CAS No.	94247-73-1
Molecular Formula	C22H15N4NaO7S
Molecular Weight	502.43 g/mol
Synonyms	Acid Orange 142; C.I. 12725; 4-Hydroxy-3-[(2-hydroxy-5-nitrophenyl)azo]-N-phenyl-2-naphthalenesulfonamide, sodium salt; Sodium 4-hydroxy-3-[(2-hydroxy-5-nitrophenyl)azo]-N-phenyl-2-naphthalenesulfonamate; 2-Naphthalenesulfonamide, 4-hydroxy-3-[(2-hydroxy-5-nitrophenyl)azo]-N-phenyl-, sodium salt; C.I. Acid Orange 142; Azo dye intermediate OA-142; Nitrophenyl azo naphthalene sulfonate sodium salt
EINECS	Contact for details

Quality Control

Our Sodium 4-Hydroxy-3-[(2-Hydroxy-5-Nitrophenyl)Azo](Phenylamino)Naphthalene-2-Sulphonate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure identity, purity, and consistency meet the high standards required for industrial and research use. Certificates of Analysis (COA) detailing specific batch results are available upon request.

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). This material is hygroscopic (moisture-sensitive); ensure the container is kept sealed to minimize exposure to atmospheric humidity.

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 (1% in Water)	Clear solution

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