Description

Cyclopentanesulfonic acid (CAS 19247-73-5) is a specialized organosulfur compound serving as a versatile building block and intermediate in advanced chemical synthesis. Its unique cyclic sulfonic acid structure makes it valuable for introducing sulfonate functionality, which can impart solubility, stability, or catalytic activity to target molecules. This chemical is essential for researchers and process chemists in the pharmaceutical, agrochemical, and material science industries developing novel active ingredients and functional polymers.

Application

• Pharmaceutical Intermediate: Key building block for synthesizing novel drug candidates, particularly those requiring sulfonamide or sulfonate moieties for enhanced bioavailability or target binding.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators where the sulfonic acid group modifies activity and environmental persistence.
• Catalyst & Ligand Preparation: Serves as a precursor for creating specialized organocatalysts or metal-complexing ligands used in asymmetric synthesis and polymerization reactions.
• Polymer & Material Science: Incorporated into polymer backbones or as a surface-modifying agent to introduce polarity, hydrophilicity, or ionic character into advanced materials.
• Chemical Research & Development: A valuable reagent for method development and exploring new reaction pathways in academic and industrial R&D laboratories.
• Specialty Surfactants: Potential starting material for synthesizing niche surfactants and detergents with specific performance characteristics.

Basic Information

Item	Details
Product Name	Cyclopentanesulfonic Acid
CAS No.	19247-73-5
Molecular Formula	C5H10O3S
Molecular Weight	150.20 g/mol
Synonyms	Cyclopentanesulfonic acid; Cyclopentylsulfonic acid; Cyclopentanesulphonic acid; Cyclopentylsulphonic acid; 1-Cyclopentanesulfonic Acid; NSC 163044; UNII-9F6I8V21FQ
EINECS	Contact for details

Quality Control

Our Cyclopentanesulfonic acid is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including purity assay and impurity profiling, to ensure it meets the stringent requirements for advanced synthetic applications. A Certificate of Analysis (COA) detailing identity, purity, and specific test results is provided with every shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from strong bases and oxidizing agents. For long-term storage, consider using an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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