Description

1,3-Naphthalenedisulfonic Acid, 5,6-Diamino-, Dipotassium Salt is a high-purity, water-soluble organic salt primarily utilized as a key intermediate in the synthesis of advanced dyes and pigments. Its molecular structure, featuring both sulfonic acid and amino functional groups, makes it a versatile building block for creating colorants with specific properties like enhanced brightness, solubility, and thermal stability. This compound is essential for manufacturers in the dye and pigment industries, as well as for research and development in functional materials and analytical chemistry.

Application

• Dye and Pigment Intermediate: A critical precursor for synthesizing azo dyes, acid dyes, and reactive dyes, particularly for textiles, leather, and paper.
• Functional Dye Synthesis: Used in the production of specialized dyes for ink-jet printing, optical data storage, and liquid crystal displays (LCDs).
• Analytical Reagent: Serves as a reagent or standard in chromatographic analysis and other laboratory procedures.
• Chemical Research: Employed as a building block in organic synthesis and materials science research for developing novel polymers or coordination compounds.
• Corrosion Inhibitor Formulation: Potential use as a component in formulations designed to protect metal surfaces.

Basic Information

Product Name	1,3-Naphthalenedisulfonic Acid, 5,6-Diamino-, Dipotassium Salt
CAS No.	307495-30-3
Molecular Formula	C₁₀H₈K₂N₂O₆S₂
Molecular Weight	394.41 g/mol
Synonyms	5,6-Diamino-1,3-naphthalenedisulfonic acid dipotassium salt; 1,3-Naphthalenedisulfonic acid, 5,6-diamino-, potassium salt (1:2); Dipotassium 5,6-diaminonaphthalene-1,3-disulfonate; 5,6-Diaminonaphthalene-1,3-disulfonic acid potassium salt; 5,6-Diamino-1,3-NDSA dipotassium salt; K₂-5,6-DANSA
EINECS	Contact for details

Quality Control

Our production of 1,3-Naphthalenedisulfonic Acid, 5,6-Diamino-, Dipotassium Salt adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including identification, assay, and impurity profiling. Certificates of Analysis (COA) detailing all test results are provided and available upon request 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). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality and stability.

Specification

Item	Specification
Appearance	Yellow to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.5%

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