Description

2-Hydroxy-5-[[4-[[4-[[1-Hydroxy-7-[(2,4-Dihydroxyphenyl)Azo]-3-Sodiosulfo-2-Naphthalenyl]Azo]Phenyl]Aminocarbonyl]Phenyl]Azo]Benzoic Acid Sodium Salt is a high-purity, complex azo dye intermediate known for its excellent chromophoric properties and stability. This compound is critical for manufacturers requiring precise color development and consistent batch-to-batch performance in demanding applications. It is primarily utilized by producers of specialty dyes, pigments, and colorants for textiles, inks, and advanced materials.

Application

• Primary Intermediate for Azo Dyes & Pigments: Serves as a key building block in the synthesis of high-performance, water-soluble azo dyes for textile dyeing and printing.
• Specialty Ink Formulations: Used in the production of colorants for inks, including those for packaging, security printing, and digital applications.
• Functional Colorants for Polymers: Employed in coloring plastics and synthetic fibers where specific lightfastness and thermal stability are required.
• Research & Development: A vital reagent in chemical R&D for developing novel chromophores and studying azo coupling reactions.
• Analytical Chemistry: Can be used as a staining agent or a complexometric indicator in specific laboratory procedures.

Basic Information

Item	Detail
Product Name	2-Hydroxy-5-[[4-[[4-[[1-Hydroxy-7-[(2,4-Dihydroxyphenyl)Azo]-3-Sodiosulfo-2-Naphthalenyl]Azo]Phenyl]Aminocarbonyl]Phenyl]Azo]Benzoic Acid Sodium Salt
CAS No.	7097-42-9
Molecular Formula	C40H24N6Na2O11S
Molecular Weight	866.75 g/mol
Synonyms	Acid Red 299; C.I. 18130; Benzoic acid, 2-hydroxy-5-[[4-[[4-[[1-hydroxy-7-[(2,4-dihydroxyphenyl)azo]-3-sulfo-2-naphthalenyl]azo]phenyl]aminocarbonyl]phenyl]azo]-, disodium salt; Disodium 5-[[4-[[4-[[7-[(2,4-dihydroxyphenyl)azo]-1-hydroxy-3-sulphonato-2-naphthyl]azo]phenyl]carbamoyl]phenyl]azo]salicylate; 2-Hydroxy-5-((4-((4-((7-((2,4-dihydroxyphenyl)diazenyl)-1-hydroxy-3-sulfo-2-naphthyl)diazenyl)phenyl)carbamoyl)phenyl)diazenyl)benzoic acid disodium salt
EINECS	Contact for details

Quality Control

Our production of 2-Hydroxy-5-[[4-[[4-[[1-Hydroxy-7-[(2,4-Dihydroxyphenyl)Azo]-3-Sodiosulfo-2-Naphthalenyl]Azo]Phenyl]Aminocarbonyl]Phenyl]Azo]Benzoic Acid Sodium Salt adheres to stringent quality protocols to ensure high purity and consistent performance. Every batch is analyzed using advanced techniques like HPLC and spectrophotometry. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture, 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	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (1% in Water)	Complete, clear solution

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