Description

Sodium 4-[[2-Hydroxy-3-[(2-Methoxyphenyl)Carbamoyl]-1-Naphthyl]Azo]Benzenesulphonate is a high-purity azo dye intermediate and specialty chemical compound. It is valued for its role in synthesizing complex, high-performance dyes and pigments, particularly those requiring specific color fastness and stability properties. This product is essential for manufacturers in the dye and pigment, textile, and specialty chemical industries seeking reliable intermediates for advanced colorant production.

Application

• Primary Intermediate for Azo Dyes & Pigments: Serves as a key building block in the synthesis of complex, high-value azo dyes, especially for textiles, leather, and paper.
• Specialty Colorant Production: Used in the manufacture of specialized pigments for inks, coatings, and plastics where specific hue and stability are required.
• Research & Development: Employed in chemical R&D for developing novel chromophores and studying structure-property relationships in dye chemistry.
• Analytical Chemistry Reagent: Can be utilized as a standard or reagent in analytical methods for dye identification and quantification.

Basic Information

Product Name	Sodium 4-[[2-Hydroxy-3-[(2-Methoxyphenyl)Carbamoyl]-1-Naphthyl]Azo]Benzenesulphonate
CAS No.	68399-96-2
Molecular Formula	C24H17N3NaO6S
Molecular Weight	498.46 g/mol
Synonyms	Benzenesulfonic acid, 4-[[2-hydroxy-3-[(2-methoxyphenyl)amino]carbonyl]-1-naphthalenyl]azo]-, sodium salt; Sodium 4-[(2-hydroxy-3-[(2-methoxyphenyl)carbamoyl]-1-naphthyl)azo]benzenesulfonate; Azo dye intermediate 68399-96-2; C.I. Acid Orange 156 (related); 2-Hydroxy-3-[(2-methoxyphenyl)carbamoyl]-1-naphthyl azo benzenesulfonic acid sodium salt
EINECS	Contact for details

Quality Control

Our Sodium 4-[[2-Hydroxy-3-[(2-Methoxyphenyl)Carbamoyl]-1-Naphthyl]Azo]Benzenesulphonate is produced under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and consistent performance. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Orange to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents	Meets ICH guidelines

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