Description

1,3,5-Benzenetrisulfonic Acid is a versatile and highly functionalized aromatic sulfonic acid derivative, serving as a key building block in advanced organic synthesis. Its trifunctional nature provides three reactive sulfonic acid sites, making it an excellent precursor for creating complex molecules, cross-linked polymers, and specialized catalysts. This compound is particularly valuable for manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries who require a reliable source of high-purity, multi-functional intermediates for research and production.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and diagnostic agents, where its sulfonic acid groups can be modified to enhance solubility or biological activity.
• Cross-linking Agent: Acts as a trifunctional cross-linker in the production of ion-exchange resins, specialty polymers, and hydrogels, imparting thermal and chemical stability.
• Catalyst & Ligand Precursor: Serves as a starting material for synthesizing metal-organic frameworks (MOFs), homogeneous catalysts, and sulfonated ligands used in various chemical transformations.
• Dye & Pigment Manufacturing: Employed in the synthesis of sulfonated dyes, optical brighteners, and other colorants that require high water solubility and fastness properties.
• Surfactant & Detergent Chemistry: Functions as a key intermediate for producing anionic surfactants and complexing agents with multiple charged sites for enhanced performance.
• Electroplating & Metal Treatment: Utilized in electroplating baths and surface treatment formulations as a brightening agent and complexant for metal ions.
• Analytical Reagent: Applied in analytical chemistry as a standard or reagent for titration and other quantitative analyses.
• Research & Development: A valuable tool in academic and industrial R&D for exploring new synthetic methodologies and material science applications.

Basic Information

Product Name	1,3,5-Benzenetrisulfonic Acid
CAS No.	617-99-2
Molecular Formula	C6H6O9S3
Molecular Weight	318.29 g/mol
Synonyms	Benzene-1,3,5-trisulfonic Acid; 1,3,5-Trisulfobenzoic Acid (common misnomer); Trimesic Acid Trisulfonic Acid; Benzenetrisulfonic Acid; Benzene-m-trisulfonic Acid; Trisulfobenzoic Acid; TSA; BTSA
EINECS	210-537-5

Quality Control

Our 1,3,5-Benzenetrisulfonic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for identity, purity, and impurity profiles. Certificates of Analysis (COA) documenting results from tests such as HPLC assay, water content (KF), and residual solvent analysis are provided with every shipment to guarantee traceability and compliance with your internal quality standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed when not in use to prevent absorption of atmospheric moisture. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 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.