Description

Benzoic acid, 4-1-hydroxy-6-5-hydroxy-6-(2-methyl-4-sulfophenyl)azo-7-sulfo-2-naphthalenylaminocarbonylamino-3-sulfo-2-naphthalenylazo-, compd. with 2,2,2-nitrilotrisethanol (1:4) is a high-purity, complex azo dye intermediate and functional chemical compound. This product is valued for its precise molecular structure, which provides consistent performance as a key building block in the synthesis of specialized dyes and pigments. It is primarily required by manufacturers in the colorants, textile, and specialty chemical industries for producing vivid and stable colors.

Application

• Primary Intermediate for Azo Dyes & Pigments: Serves as a critical precursor in the synthesis of high-performance, sulfonated azo dyes, particularly for textiles and leather.
• Specialty Colorant Production: Used in manufacturing dyes requiring specific shades of red, violet, or blue with enhanced solubility and fastness properties.
• Textile Dyeing and Printing: Imparts color to natural and synthetic fibers, valued for its potential brightness and wash-fastness.
• Ink Formulation: A component in the production of specialized inks for various printing applications.
• Research & Development: Employed in chemical R&D for developing new chromophores and functional materials with specific optical properties.
• Potential Use in Analytical Chemistry: May be utilized as a reagent or standard in certain colorimetric analytical methods.

Basic Information

Item	Detail
Product Name	Benzoic acid, 4-1-hydroxy-6-5-hydroxy-6-(2-methyl-4-sulfophenyl)azo-7-sulfo-2-naphthalenylaminocarbonylamino-3-sulfo-2-naphthalenylazo-, compd. with 2,2,2-nitrilotrisethanol (1:4)
CAS No.	38801-09-1
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Benzoic acid, 4-[[6-[[[5-hydroxy-6-[(2-methyl-4-sulfophenyl)azo]-7-sulfo-2-naphthalenyl]amino]carbonyl]amino]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]-, compd. with 2,2',2''-nitrilotris[ethanol] (1:4); C.I. Acid Red 337; Acid Red 337; Trolamine compound of Acid Red 337; 2,2',2''-Nitrilotris(ethanol) compound with 4-[[6-[[[5-hydroxy-6-[(2-methyl-4-sulfophenyl)azo]-7-sulfo-2-naphthalenyl]amino]carbonyl]amino]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]benzoic acid (1:4); Azo dye intermediate AR337; Triethanolamine salt of Acid Red 337
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to strict quality management systems. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency meet the exacting standards required for synthesis. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting key parameters such as assay, impurity profile, and physical characteristics.

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 performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Loss on Drying	Max. 5.0%
Sulfated Ash	Max. 1.0%
Heavy Metals (as Pb)	Max. 20 ppm
Related Substances (HPLC)	Individual impurity: Max. 1.0% Total impurities: Max. 3.0%

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