Description

Naphthalene-1,5-Disulphonamide is a specialized organic intermediate featuring a naphthalene core symmetrically substituted with sulphonamide groups. This compound is valued for its role as a key building block in the synthesis of more complex molecules, particularly dyes, pigments, and functional polymers. It is primarily sought by manufacturers and R&D laboratories in the chemical, pharmaceutical, and advanced materials sectors for developing products with specific optical or chemical properties.

Application

• Dye and Pigment Intermediate: Serves as a crucial precursor in the synthesis of acid dyes, reactive dyes, and high-performance organic pigments.
• Pharmaceutical Synthesis: Used as a building block for creating sulfonamide-based active pharmaceutical ingredients (APIs) and other bioactive molecules.
• Polymer Modification: Employed to introduce sulfonamide functional groups into polymers, enhancing properties like solubility, thermal stability, or ionic conductivity.
• Chemical Research: A valuable reagent in organic synthesis and medicinal chemistry for constructing complex heterocyclic compounds.
• Analytical Chemistry: Can be used as a standard or reagent in chromatographic methods and other analytical techniques.
• Specialty Chemicals: Finds application in the production of optical brighteners, corrosion inhibitors, and other performance chemicals.

Basic Information

Product Name	Naphthalene-1,5-Disulphonamide
CAS No.	49650-84-2
Molecular Formula	C₁₀H₁₀N₂O₄S₂
Molecular Weight	286.33 g/mol
Synonyms	1,5-Naphthalenedisulfonamide; Naphthalene-1,5-disulfonic acid diamide; 1,5-NDSA; 1,5-Naphthalene disulphonamide; 1,5-Disulfamoylnaphthalene; 1,5-Naphthalene bis(sulfonamide); NSC 403796; 1,5-Naphthalenedisulfonyl diamide
EINECS	Contact for details

Quality Control

Our Naphthalene-1,5-Disulphonamide is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including HPLC, NMR, and IR spectroscopy. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory compliance needs.

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 nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product quality and stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%

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