Description

5-Hydroxy-4-Nitroso-1-Naphthalenesulfonic Acid Sodium Salt is a specialized naphthalene derivative that serves as a critical intermediate in the synthesis of dyes, pigments, and analytical reagents. Its unique nitroso and sulfonic acid functional groups make it a valuable precursor for creating complex colorants and chemical sensors. This high-purity compound is essential for manufacturers and R&D laboratories in the dye, textile, and fine chemical industries seeking reliable and consistent raw materials for advanced synthesis.

Application

• Dye and Pigment Intermediate: A key precursor in the synthesis of azo dyes, acid dyes, and other complex colorants for textiles, leather, and paper.
• Analytical Chemistry Reagent: Used in the preparation of reagents for the colorimetric detection and quantification of specific metal ions or organic compounds.
• Chemical Synthesis Building Block: Employed in organic synthesis to introduce nitroso and sulfonate groups into more complex molecular architectures.
• Photographic Chemicals: Can be utilized in the formulation of certain specialty photographic chemicals and sensitizers.
• Research & Development: Serves as a standard or starting material in academic and industrial research for developing new functional materials.

Basic Information

Product Name	5-Hydroxy-4-Nitroso-1-Naphthalenesulfonic Acid Sodium Salt
CAS No.	63182-24-1
Molecular Formula	C₁₀H₆NNaO₆S
Molecular Weight	291.21 g/mol
Synonyms	4-Nitroso-5-hydroxy-1-naphthalenesulfonic acid sodium salt; 1-Naphthalenesulfonic acid, 5-hydroxy-4-nitroso-, sodium salt; Sodium 5-hydroxy-4-nitroso-1-naphthalenesulfonate; 5-Hydroxy-4-nitrosonaphthalene-1-sulfonic acid sodium salt
EINECS	Contact for details

Quality Control

Our 5-Hydroxy-4-Nitroso-1-Naphthalenesulfonic Acid Sodium Salt is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting standards for use in sensitive applications like dye synthesis and analytical reagent preparation. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). This product is light-sensitive and easily oxidized; prolonged exposure to light, air, or elevated temperatures should be avoided to maintain stability and purity.

Specification

Item	Specification
Appearance	Yellow to orange-brown powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition (Sulfated Ash)	Contact for details

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