Description

Trisodium 5-[[4-[[8-Amino-1-Hydroxy-7-[(4-Nitrophenyl)Azo]-3,6-Disulphonato-2-Naphthyl]Azo]Phenyl]Azo]Salicylate is a high-purity, water-soluble azo dye intermediate characterized by its complex polyazo structure and multiple sulfonate groups. This compound is essential for synthesizing high-value, colorfast dyes and pigments, particularly in applications requiring specific shades of yellow, orange, and brown with excellent light and wash fastness. It is a critical raw material for manufacturers in the textile, leather, ink, and specialty paper industries seeking to produce vibrant and durable colors.

Application

• Textile Dyeing: Primary intermediate for the production of acid dyes and direct dyes used on wool, silk, nylon, and cellulose fibers.
• Leather Coloring: Used in the formulation of dyes for imparting rich, uniform color to finished leather goods.
• Ink Manufacturing: A key component in the synthesis of pigments for industrial inks, including packaging and security inks.
• Paper Staining: Employed in the production of dyes for specialty papers, including decorative and high-quality writing papers.
• Biological Staining: Potential use as a precursor for histological stains in laboratory settings.
• Research & Development: Serves as a standard or building block in chemical research for developing new chromophores and functional materials.

Basic Information

Product Name	Trisodium 5-[[4-[[8-Amino-1-Hydroxy-7-[(4-Nitrophenyl)Azo]-3,6-Disulphonato-2-Naphthyl]Azo]Phenyl]Azo]Salicylate
CAS No.	67990-22-1
Molecular Formula	C29H16N7Na3O12S2
Molecular Weight	811.55 g/mol
Synonyms	Acid Orange 67; C.I. 14172; Trisodium 8-amino-1-hydroxy-7-[(4-nitrophenyl)azo]-3,6-disulfo-2-[[4-[(2-hydroxy-3-carboxyphenyl)azo]phenyl]azo]naphthalene; 5-[[4-[[8-Amino-1-hydroxy-7-[(4-nitrophenyl)azo]-3,6-disulfo-2-naphthyl]azo]phenyl]azo]salicylic acid trisodium salt; C.I. Acid Orange 67; Orange II G; Amacid Orange II G
EINECS	Contact for details

Quality Control

Our Trisodium 5-[[4-[[8-Amino-1-Hydroxy-7-[(4-Nitrophenyl)Azo]-3,6-Disulphonato-2-Naphthyl]Azo]Phenyl]Azo]Salicylate is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure consistent purity, color strength, and chemical identity. Certificates of Analysis (COA) documenting key parameters such as assay, impurity profile, and solubility 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 each use to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Orange to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Water Solubility	Freely soluble
Heavy Metals (as Pb)	≤ 20 ppm
pH (1% Solution)	7.0 - 9.0

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