Description

4-[(4-Amino-2-Methyl-5-Methoxyphenyl)Azo]-1'-Hydroxy-[1,2'-Azobisnaphthalene]-4',6-Disulfonic Acid Disodium Salt is a high-purity, water-soluble azo dye intermediate with excellent chromophoric properties. This compound is valued for its ability to impart vibrant and stable coloration, making it a critical component in the synthesis of specialized dyes and pigments. It is primarily required by manufacturers in the textile, ink, and specialty chemical industries for producing high-performance colorants.

Application

• Textile Dye Intermediate: A key precursor for synthesizing acid dyes and direct dyes used on nylon, silk, wool, and paper.
• Ink Manufacturing: Used in the production of high-quality printing inks, including those for packaging and security applications.
• Specialty Pigments: Serves as a building block for creating complex organic pigments with specific hue and fastness properties.
• Biological Staining: Potential use as an intermediate for histological stains and indicators in laboratory settings.
• Research & Development: Employed in chemical research for studying azo coupling reactions and developing novel chromophores.
• Industrial Colorants: Applicable in the coloration of plastics, leather, and other materials requiring sulfonated azo structures.

Basic Information

Product Name	4-[(4-Amino-2-Methyl-5-Methoxyphenyl)Azo]-1'-Hydroxy-[1,2'-Azobisnaphthalene]-4',6-Disulfonic Acid Disodium Salt
CAS No.	6406-47-9
Molecular Formula	C28H21N5O9S2Na2
Molecular Weight	681.60 g/mol
Synonyms	Acid Red 52; C.I. 45100; Disodium 4-[(4-amino-2-methyl-5-methoxyphenyl)azo]-1-hydroxy-1,2'-azonaphthalene-4',6-disulfonate; 1-Hydroxy-4-[(4-amino-2-methyl-5-methoxyphenyl)azo]-1,2'-azonaphthalene-4',6-disulfonic acid disodium salt; Azo Rubine; Food Red 106; Phloxine B related compound; 1,2'-Azobis(4-hydroxy-3-((4-amino-2-methyl-5-methoxyphenyl)azo)naphthalene-6,4'-disulfonic acid) disodium salt
EINECS	229-072-8

Quality Control

Our production of 4-[(4-Amino-2-Methyl-5-Methoxyphenyl)Azo]-1'-Hydroxy-[1,2'-Azobisnaphthalene]-4',6-Disulfonic Acid Disodium Salt adheres to stringent quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and compliance with customer specifications. Certificates of Analysis (COA) detailing assay, impurity profile, and physical properties are provided with each shipment.

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). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability and handling properties.

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	≤ 20.0%
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.