Description

7-[(4-Aminobenzoyl)Amino]-4-Hydroxy-3-[[4-[(5-Hydroxy-6-Phenylazo-7-Sodiosulfo-2-Naphthalenyl)Aminocarbonyl]Phenyl]Azo]Naphthalene-2-Sulfonic Acid Sodium Salt is a high-purity, complex azo dye intermediate essential for producing vibrant and stable colorants. This compound matters for its role in synthesizing specialized dyes with excellent lightfastness and washfastness properties, meeting stringent quality demands. It is primarily needed by manufacturers in the textile, ink, and specialty coatings industries seeking reliable and consistent raw materials for their colorant production.

Application

• Primary Intermediate for Reactive Dyes: A key building block in the synthesis of high-performance reactive dyes for cotton and other cellulosic fibers.
• Textile Colorant Production: Used in manufacturing dyes for wool, silk, and nylon, providing strong, brilliant colors.
• Inkjet Ink Formulations: Serves as a precursor for pigments used in high-quality digital printing inks.
• Specialty Coatings and Paints: Employed in creating colorants for industrial coatings requiring specific chromaticity and durability.
• Leather Dyeing: Used in the production of dyes for the leather tanning and finishing industry.
• Paper Coloring: An intermediate for dyes used in the coloring of specialty papers and packaging.
• Research & Development: Serves as a standard or starting material in chemical R&D for novel dye and pigment synthesis.
• Analytical Chemistry: Potentially used as a staining agent or chromophore in certain analytical methodologies.

Basic Information

Item	Detail
Product Name	7-[(4-Aminobenzoyl)Amino]-4-Hydroxy-3-[[4-[(5-Hydroxy-6-Phenylazo-7-Sodiosulfo-2-Naphthalenyl)Aminocarbonyl]Phenyl]Azo]Naphthalene-2-Sulfonic Acid Sodium Salt
CAS No.	5873-31-4
Molecular Formula	C40H26N6O10S2•2Na
Molecular Weight	Contact for details
Synonyms	Acid Red 299; C.I. 18129; Sodium 7-[(4-aminobenzoyl)amino]-4-hydroxy-3-[[4-[(5-hydroxy-6-phenylazo-7-sulphonato-2-naphthyl)carbamoyl]phenyl]azo]naphthalene-2-sulphonate; 7-[(4-Aminobenzoyl)Amino]-4-Hydroxy-3-[[4-[(5-Hydroxy-6-Phenylazo-7-Sulfo-2-Naphthyl)Carbamoyl]Phenyl]Azo]-2-Naphthalenesulfonic Acid Disodium Salt; Reactive Dye Intermediate; Azo Dye Intermediate RED-299; C.I. Acid Red 299
EINECS	Contact for details

Quality Control

Our production of 7-[(4-Aminobenzoyl)Amino]-4-Hydroxy-3-[[4-[(5-Hydroxy-6-Phenylazo-7-Sodiosulfo-2-Naphthalenyl)Aminocarbonyl]Phenyl]Azo]Naphthalene-2-Sulfonic Acid Sodium Salt adheres to rigorous quality testing protocols to ensure batch-to-batch consistency and compliance with industry specifications. Certificates of Analysis (COA) detailing purity, assay, and impurity profiles are available upon request. We support our partners with the documentation needed for their quality management systems.

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%; Total impurities ≤ 3.0%
Solubility (in Water)	Soluble, clear solution

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