Description

Sodium 4-Hydroxy-7-[(4-Nitrobenzoyl)Amino]Naphthalene-2-Sulphonate is a specialized organic intermediate and dye precursor with a high degree of structural specificity. Its value lies in its functionalized naphthalene core, which is engineered for precise chemical reactivity and colorant properties, making it a critical component in advanced synthesis. This compound is essential for manufacturers in the dye and pigment, pharmaceutical intermediate, and specialty chemical research sectors who require consistent, high-purity building blocks for complex molecular architectures.

Application

• Key Intermediate for Azo Dyes and Pigments: Serves as a crucial coupling component in the synthesis of high-performance, color-fast azo dyes for textiles, inks, and plastics.
• Pharmaceutical Intermediate: Used in research and development for creating novel active pharmaceutical ingredients (APIs) with specific targeting properties.
• Functional Dye Synthesis: A building block for producing specialized dyes used in biological staining, sensors, and laser applications.
• Chemical Research & Development: Employed in academic and industrial labs for exploring new organic reactions and synthesizing complex heterocyclic compounds.
• Liquid Crystal and OLED Material Precursor: Potential use in the synthesis of advanced organic electronic materials due to its planar, conjugated structure.

Basic Information

Product Name	Sodium 4-Hydroxy-7-[(4-Nitrobenzoyl)Amino]Naphthalene-2-Sulphonate
CAS No.	94232-37-8
Molecular Formula	C17H11N2NaO7S
Molecular Weight	410.34 g/mol
Synonyms	7-[(4-Nitrobenzoyl)amino]-4-hydroxy-2-naphthalenesulfonic acid sodium salt; 4-Hydroxy-7-[(4-nitrobenzoyl)amino]-2-naphthalenesulfonic acid sodium salt; Sodium 4-hydroxy-7-[(4-nitrobenzamido)]-2-naphthalenesulfonate; 2-Naphthalenesulfonic acid, 7-[(4-nitrobenzoyl)amino]-4-hydroxy-, sodium salt (1:1); Azo dye intermediate K-7; Acid dye precursor.
EINECS	Contact for details

Quality Control

Our production of Sodium 4-Hydroxy-7-[(4-Nitrobenzoyl)Amino]Naphthalene-2-Sulphonate adheres to a strict quality management system to ensure batch-to-batch consistency and reliability for industrial synthesis. The product undergoes rigorous analytical testing, including HPLC for purity and identity confirmation. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical characteristics is provided with every shipment 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). Keep away from strong oxidizing agents and incompatible materials. The container should be kept tightly sealed when not in use to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Yellow to orange-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition (Sulfated Ash)	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 2.0%
Solubility (1% in Water)	Clear, yellow solution

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