Description

Sodium Hydrogen 2-[(2-Amino-5-Hydroxy-7-Sulphonato-1-Naphthyl)Azo]-5-Nitrobenzoate is a high-purity, water-soluble azo dye intermediate essential for producing vibrant and stable colorants. Its value lies in its precise molecular structure, which enables the synthesis of specialized dyes with excellent light and wash fastness properties. This compound is primarily needed by manufacturers in the textile, ink, and specialty chemical industries for creating high-performance pigments and dyes.

Application

• Primary intermediate for the synthesis of azo dyes and pigments used in textile coloring.
• Key component in manufacturing specialty inks for packaging and security printing applications.
• Used in the production of colorants for plastics and polymers to achieve specific hues.
• Intermediate for biological and histological stains used in laboratory diagnostics.
• Raw material for research and development of novel functional dyes with specific optical properties.
• Potential use in the formulation of sensitizers and light-absorbing materials for specialized applications.

Basic Information

Product Name	Sodium Hydrogen 2-[(2-Amino-5-Hydroxy-7-Sulphonato-1-Naphthyl)Azo]-5-Nitrobenzoate
CAS No.	67815-66-1
Molecular Formula	C₁₇H₁₁N₄NaO₈S
Molecular Weight	454.35 g/mol
Synonyms	Benzoic acid, 2-[(2-amino-5-hydroxy-7-sulfo-1-naphthalenyl)azo]-5-nitro-, monosodium salt; C.I. 18050; Acid Orange 116; Sodium 2-[(2-amino-5-hydroxy-7-sulfonato-1-naphthyl)azo]-5-nitrobenzoate; 2-[(2-Amino-5-hydroxy-7-sulfonato-1-naphthyl)azo]-5-nitrobenzoic acid sodium salt; Azo dye intermediate 67815-66-1; 5-Nitro-2-[(2-amino-5-hydroxy-7-sulfonato-1-naphthyl)azo]benzoic acid sodium salt
EINECS	Contact for details

Quality Control

Our Sodium Hydrogen 2-[(2-Amino-5-Hydroxy-7-Sulphonato-1-Naphthyl)Azo]-5-Nitrobenzoate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure high purity, consistent composition, and batch-to-batch reliability. Certificates of Analysis (COA) detailing identity, assay, and impurity profiles 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 absorption of atmospheric moisture, which can affect product performance.

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	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm
Water Solubility	Freely soluble

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