Description

Naphthalene-1,3,5-Trisulphonic Acid is a key aromatic sulfonic acid derivative, valued for its trifunctional character and strong acidity. This compound serves as a versatile intermediate and building block in advanced organic synthesis, enabling the introduction of multiple sulfonate groups for enhanced solubility and reactivity. It is essential for manufacturers in the dye, pharmaceutical, and specialty chemical industries seeking to produce high-performance surfactants, catalysts, and active pharmaceutical ingredients (APIs).

Application

• Dye and Pigment Intermediate: Acts as a crucial coupling agent and solubilizing group in the synthesis of acid dyes, reactive dyes, and optical brighteners.
• Pharmaceutical Synthesis: Used as a building block for sulfonated drug molecules and as a catalyst or reagent in specific organic transformations.
• Surfactant and Detergent Manufacture: Serves as a precursor for anionic surfactants with high wetting and emulsifying properties.
• Catalyst and Chemical Reagent: Employed in organic synthesis and industrial processes that require a strong, polyfunctional acid catalyst.
• Concrete Plasticizer/Water Reducer: Can be used in the production of polycondensate-based superplasticizers for construction materials.
• Electroplating and Metal Treatment: Functions as an additive in electroplating baths and surface treatment formulations.
• Research & Development: A valuable reagent for academic and industrial R&D in synthetic chemistry and material science.

Basic Information

Item	Detail
Product Name	Naphthalene-1,3,5-Trisulphonic Acid
CAS No.	6654-64-4
Molecular Formula	C10H8O9S3
Molecular Weight	368.36 g/mol
Synonyms	1,3,5-Naphthalenetrisulfonic Acid; Naphthalene-1,3,5-trisulfonic Acid; 1-Naphthol-3,5-disulfonic Acid (related); Trisodium Naphthalene-1,3,5-trisulfonate; NTSA; Naphthalenetrisulphonic Acid; 4-Hydroxynaphthalene-2,7-disulfonic Acid (isomer); Naphthalene Trisulfonic Acid
EINECS	229-687-7

Quality Control

Our Naphthalene-1,3,5-Trisulphonic Acid is produced under a stringent quality management system. Each batch undergoes comprehensive analytical testing, including assay, impurity profiling, and physical characterization, to ensure it meets precise customer specifications and consistent high purity. A Certificate of Analysis (COA) documenting all test results is provided with every shipment to guarantee traceability and compliance.

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 material is hygroscopic (moisture-sensitive) and should be kept in a dry environment to prevent caking or decomposition. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Sulfate Ash	≤ 0.5%
pH (1% Solution)	Contact for details

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