Description

4-Amino-3-[(2-Chlorophenyl)Azo]-5-Hydroxy-6-[[4-(Phenylazo)Phenyl]Azo]Naphthalene-2,7-Disulphonic Acid, Sodium Salt is a high-purity, complex disazo dye intermediate essential for producing vivid and durable colorants. Its value lies in its ability to impart specific, stable shades of red and brown with excellent fastness properties in demanding applications. This product is a critical raw material for manufacturers in the textile, leather, ink, and specialty pigment industries seeking consistent quality and reliable supply for their formulations.

Application

• Textile Dyeing: Primary application for dyeing natural and synthetic fibers, particularly cotton, wool, and nylon, to achieve deep, wash-fast shades.
• Leather Finishing: Used in the coloration of leather goods, providing rich, uniform color with good light and rub fastness.
• Ink Manufacturing: A key component in the formulation of high-performance inks for packaging, printing, and specialty marking.
• Pigment Production: Serves as a crucial intermediate in the synthesis of organic pigments used in plastics, paints, and coatings.
• Paper Coloration: Employed for tinting high-grade papers and specialty board where color consistency is paramount.
• Research & Development: Used in chemical research for developing new dye molecules and studying azo dye chemistry and properties.

Basic Information

Product Name	4-Amino-3-[(2-Chlorophenyl)Azo]-5-Hydroxy-6-[[4-(Phenylazo)Phenyl]Azo]Naphthalene-2,7-Disulphonic Acid, Sodium Salt
CAS No.	94107-91-2
Molecular Formula	C34H22ClN7O8S2•xNa
Molecular Weight	Contact for details
Synonyms	Acid Red 404; C.I. 28215; 4-Amino-3-[(2-chlorophenyl)diazenyl]-5-hydroxy-6-[(4-phenyldiazenylphenyl)diazenyl]naphthalene-2,7-disulfonic acid sodium salt; 2,7-Naphthalenedisulfonic acid, 4-amino-3-[(2-chlorophenyl)azo]-5-hydroxy-6-[(4-phenylazophenyl)azo]-, sodium salt; Disazo dye intermediate; Sodium 4-amino-3-((2-chlorophenyl)diazenyl)-5-hydroxy-6-((4-(phenyldiazenyl)phenyl)diazenyl)naphthalene-2,7-disulfonate
EINECS	Contact for details

Quality Control

Our production of 4-Amino-3-[(2-Chlorophenyl)Azo]-5-Hydroxy-6-[[4-(Phenylazo)Phenyl]Azo]Naphthalene-2,7-Disulphonic Acid, Sodium Salt adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and industry standards. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical characteristics is provided with each shipment to guarantee traceability and consistency.

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 compound is hygroscopic (moisture-sensitive); therefore, the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance and handling.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture (KF)	≤ 5.0%
Water Solubility	Freely soluble
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Individual ≤ 1.0%, Total ≤ 3.0%

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