Description

Sodium 4-Hydroxy-5-[(2-Methoxy-4-Nitrophenyl)Azo]-6-(Phenylamino)Naphthalene-2-Sulphonate is a high-purity synthetic azo dye intermediate. This compound is valued for its ability to impart specific color properties and its role as a key building block in the synthesis of complex dyes and pigments. It is primarily required by manufacturers in the textile, ink, and specialty chemical industries for producing high-performance colorants.

Application

• Primary Intermediate for Azo Dyes: Serves as a crucial precursor in the synthesis of complex, high-value azo dyes for textiles and leather.
• Specialty Ink Formulation: Used in the production of inks for packaging, security printing, and specialty marking applications.
• Pigment Manufacturing: Acts as a key component in the creation of organic pigments with specific hue and stability requirements.
• Research & Development: Employed in chemical R&D labs for developing novel chromophores and studying dye chemistry.
• Industrial Colorant Production: Utilized in formulating colorants for plastics, coatings, and other industrial materials requiring precise color characteristics.

Basic Information

Product Name	Sodium 4-Hydroxy-5-[(2-Methoxy-4-Nitrophenyl)Azo]-6-(Phenylamino)Naphthalene-2-Sulphonate
CAS No.	6222-55-5
Molecular Formula	C23H17N4NaO7S
Molecular Weight	516.46 g/mol
Synonyms	Acid Orange 74; C.I. 18745; 4-Hydroxy-3-[(2-methoxy-5-nitrophenyl)azo]-N-phenyl-2,7-naphthalenedisulfonamide, sodium salt; 2,7-Naphthalenedisulfonic acid, 4-hydroxy-3-[(2-methoxy-5-nitrophenyl)azo]-N-phenyl-, sodium salt; Sodium 4-hydroxy-3-[(2-methoxy-5-nitrophenyl)azo]-N-phenyl-2,7-naphthalenedisulfonamide; C.I. Acid Orange 74; Orange II derivative
EINECS	Contact for details

Quality Control

Our Sodium 4-Hydroxy-5-[(2-Methoxy-4-Nitrophenyl)Azo]-6-(Phenylamino)Naphthalene-2-Sulphonate is produced under a stringent quality management system. Every batch undergoes rigorous analytical testing to ensure consistent purity, color strength, and chemical identity. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical specifications is provided with each shipment to guarantee it meets your specific application 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). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of 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
Water Solubility	Freely soluble

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