Description

6-Amino-3-[[4-[(4-Aminophenyl)Azo]-6-Methoxy-m-Tolyl]Azo]-4-Hydroxynaphthalene-2-Sulphonic Acid CAS NO 25180-12-5 is a high-purity, specialized azo dye intermediate essential for synthesizing vibrant and stable colorants. Its complex molecular structure provides excellent chromophoric properties, making it a critical component for achieving specific, high-performance hues. This compound is primarily required by manufacturers in the dye and pigment industries for producing advanced colorants used in textiles, inks, and specialty coatings.

Application

• Primary Intermediate for Azo Dyes: Serves as a key building block in the synthesis of high-value, complex azo dyes for textiles and fabrics.
• Pigment Manufacturing: Used in the production of organic pigments for inks, including printing and packaging inks.
• Specialty Coatings: Employed in formulating colorants for industrial and automotive coatings requiring specific color fastness.
• Research & Development: Utilized in chemical R&D labs for developing novel chromophores and studying dye chemistry.
• Functional Dyes: Potential intermediate for creating dyes with specialized functions, such as those used in optical data storage or sensors.

Basic Information

Product Name	6-Amino-3-[[4-[(4-Aminophenyl)Azo]-6-Methoxy-m-Tolyl]Azo]-4-Hydroxynaphthalene-2-Sulphonic Acid
CAS No.	25180-12-5
Molecular Formula	C30H25N7O5S
Molecular Weight	595.63 g/mol
Synonyms	Acid Red 299; C.I. 18130; 6-Amino-3-{[4-[(4-aminophenyl)azo]-6-methoxy-m-tolyl]azo}-4-hydroxy-2-naphthalenesulfonic acid; 2-Naphthalenesulfonic acid, 6-amino-3-[[4-[(4-aminophenyl)azo]-6-methoxy-m-tolyl]azo]-4-hydroxy-; 6-Amino-4-hydroxy-3-{[4-[(4-aminophenyl)azo]-6-methoxy-m-tolyl]azo}naphthalene-2-sulfonic acid; C.I. Acid Red 299; m-Tolyl azo dye intermediate; Disazo dye intermediate
EINECS	Contact for details

Quality Control

Our 6-Amino-3-[[4-[(4-Aminophenyl)Azo]-6-Methoxy-m-Tolyl]Azo]-4-Hydroxynaphthalene-2-Sulphonic Acid is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes rigorous analytical testing, including HPLC for assay and impurity profiling. Certificates of Analysis (COA) detailing all specifications are available upon request to support your quality assurance protocols.

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 (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 3.0%

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