Description

6-Amino-5-[(4-Amino-2-Chlorophenyl)Azo]-4-Hydroxy-2-Naphthalenesulfonic Acid Sodium Salt is a high-purity azo dye intermediate essential for synthesizing vibrant and stable colorants. Its value lies in its specific molecular structure, which provides excellent chromophore properties for creating a range of colors, particularly in the red to violet spectrum. This compound is a critical raw material for manufacturers in the textile, ink, and specialty chemical industries seeking to produce high-performance dyes and pigments.

Application

• Primary Intermediate for Azo Dyes: Serves as a key building block in the synthesis of acid dyes, direct dyes, and reactive dyes used for coloring nylon, wool, silk, and paper.
• Textile Industry: Used in the production of dyes for textile fibers, offering good wash and light fastness properties.
• Ink Manufacturing: Employed in the formulation of specialty inks, including those for inkjet and packaging applications, where color intensity and stability are paramount.
• Pigment Production: Acts as a precursor in the manufacture of lake pigments and other colorants for plastics and coatings.
• Research & Development: Utilized in chemical research for developing new chromogenic compounds and studying azo coupling reactions.
• Biological Staining: Potential use as an intermediate for synthesizing stains used in histological and cytological applications.

Basic Information

Product Name	6-Amino-5-[(4-Amino-2-Chlorophenyl)Azo]-4-Hydroxy-2-Naphthalenesulfonic Acid Sodium Salt
CAS No.	62134-44-5
Molecular Formula	C16H12ClN5NaO4S
Molecular Weight	436.81 g/mol
Synonyms	Acid Red 249 (sodium salt); C.I. 18134; 6-Amino-4-hydroxy-5-[(4-amino-2-chlorophenyl)azo]-2-naphthalenesulfonic acid sodium salt; 2-Naphthalenesulfonic acid, 6-amino-5-[(4-amino-2-chlorophenyl)azo]-4-hydroxy-, monosodium salt; Sodium 6-amino-5-[(4-amino-2-chlorophenyl)azo]-4-hydroxy-2-naphthalenesulfonate
EINECS	Contact for details

Quality Control

Our production of 6-Amino-5-[(4-Amino-2-Chlorophenyl)Azo]-4-Hydroxy-2-Naphthalenesulfonic Acid Sodium Salt adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing to ensure consistent purity, color strength, and chemical identity. Certificates of Analysis (COA) detailing key specifications such as assay, impurity profile, and physical characteristics are provided to guarantee compliance with your technical 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 product is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 1.0%

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