Description

Potassium 3-(Phenylsulfonyl)Benzenesulfonate is a high-purity, white to off-white crystalline powder widely used as a key intermediate in advanced organic synthesis. This compound is valued for its role in constructing complex molecular architectures, particularly in the development of specialty chemicals and active pharmaceutical ingredients (APIs). It is primarily sought by research institutions and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for process development and scale-up.

Application

• Pharmaceutical Intermediate: A critical building block in the synthesis of novel drug candidates, particularly those containing sulfonyl and sulfonate functional groups.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators.
• Specialty Polymer Production: Serves as a monomer or additive for creating polymers with specific ionic or solubility properties.
• Dye and Pigment Manufacturing: Acts as an intermediate in the synthesis of sulfonated dyes and high-performance pigments.
• Electrolyte Additive: Investigated for use in specialized battery formulations and electrochemical applications.
• Ligand and Catalyst Preparation: Utilized in the development of novel ligands for metal catalysis and coordination chemistry.

Basic Information

Product Name	Potassium 3-(Phenylsulfonyl)Benzenesulfonate
CAS No.	63316-43-8
Molecular Formula	C12H9KO5S2
Molecular Weight	336.43 g/mol
Synonyms	Potassium 3-(Benzenesulfonyl)benzenesulfonate; 3-(Phenylsulfonyl)benzenesulfonic acid potassium salt; 1,1'-Sulfonylbis(3-benzenesulfonic acid) dipotassium salt (related); m-(Phenylsulfonyl)benzenesulfonate potassium; Dipotassium 3-(phenylsulfonyl)benzene-1,5-disulfonate (isomer); KSBS; Benzenesulfonic acid, 3-(phenylsulfonyl)-, potassium salt
EINECS	Contact for details

Quality Control

Our Potassium 3-(Phenylsulfonyl)Benzenesulfonate is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the stringent requirements of our global customer base. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting key parameters such as assay, impurity profile, and residual solvents.

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals	≤ 20 ppm
Residual Solvents (GC)	Meets ICH guidelines

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