Description

Sodium 3-[(4-Acetamidophenyl)Azo]-4-Amino-5-Hydroxy-6-(Phenylazo)Naphthalene-1-Sulphonate is a high-purity, disazo-based chemical compound valued for its strong chromophoric properties and structural stability. This product is engineered to deliver consistent performance as a key intermediate in the synthesis of specialized dyes and pigments. It is primarily sought by manufacturers in the textile, ink, and specialty chemical industries for applications requiring precise color characteristics and reliable batch-to-batch uniformity.

Application

• Textile Dye Intermediate: A critical precursor for synthesizing high-performance azo dyes used in coloring natural and synthetic fibers.
• Ink & Toner Manufacturing: Serves as a key component in the production of colorants for industrial printing inks and electrophotographic toners.
• Specialty Pigment Synthesis: Used in the manufacture of complex organic pigments for plastics, coatings, and automotive finishes.
• Research & Development: Employed as a standard or experimental compound in chemical research for developing new chromophores and functional materials.
• Analytical Chemistry: Can be utilized as a reagent or standard in chromatographic analysis and method development for dye-related compounds.

Basic Information

Product Name	Sodium 3-[(4-Acetamidophenyl)Azo]-4-Amino-5-Hydroxy-6-(Phenylazo)Naphthalene-1-Sulphonate
CAS No.	71002-19-2
Molecular Formula	C24H18N6NaO5S
Molecular Weight	525.49 g/mol
Synonyms	Acid Red 337 (C.I. 17030); Sodium 4-Amino-5-hydroxy-3-[(4-acetamidophenyl)azo]-6-(phenylazo)naphthalene-1-sulfonate; C.I. 17030; 1-Naphthalenesulfonic acid, 4-amino-5-hydroxy-3-[(4-(acetylamino)phenyl)azo]-6-(phenylazo)-, sodium salt; Disazo dye intermediate; Azo dye sodium salt
EINECS	Contact for details

Quality Control

Our Sodium 3-[(4-Acetamidophenyl)Azo]-4-Amino-5-Hydroxy-6-(Phenylazo)Naphthalene-1-Sulphonate is produced under a stringent quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting specifications for use in sensitive synthesis processes. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed when not in use to prevent absorption of atmospheric moisture, which can affect product performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark red to 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.