Description

3-(Trimethylsilyl)-1-propanesulfonic acid is a specialized organosilicon sulfonic acid compound, valued for its unique combination of a reactive sulfonic acid group and a hydrolytically stable trimethylsilyl moiety. This bifunctional nature makes it a versatile building block and reagent in advanced organic synthesis and materials science. It is particularly sought after by researchers and manufacturers in the pharmaceutical, agrochemical, and specialty polymer sectors for constructing novel molecular architectures and functional materials.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring sulfonate ester or sulfonamide functionalities.
• Polymer Modification: Acts as a monomer or grafting agent to introduce sulfonic acid groups into polymers, enhancing properties like hydrophilicity or ion-exchange capacity.
• Surface Functionalization: Employed to modify silica or other oxide surfaces, creating stable, acid-functionalized coatings for catalysis or chromatography.
• Catalysis: Serves as a precursor for solid acid catalysts or as a ligand in organometallic complexes.
• Agrochemical Synthesis: A key building block in the development of novel herbicides, fungicides, and plant growth regulators.
• Electrolyte Additive: Investigated for use in lithium-ion battery electrolytes to improve stability and performance.
• Crosslinking Agent: Used in the production of specialty resins and elastomers where acid-catalyzed or siloxane-based curing is required.

Basic Information

Item	Information
Product Name	3-(Trimethylsilyl)-1-propanesulfonic Acid
CAS No.	284664-85-3
Molecular Formula	C6H16O3SSi
Molecular Weight	196.34 g/mol
Synonyms	3-(Trimethylsilyl)propanesulfonic Acid; (3-Sulfopropyl)trimethylsilanol; 1-Propanesulfonic acid, 3-(trimethylsilyl)-; Trimethylsilylpropanesulfonic Acid; TMSPA; TMS-PSA
EINECS	Contact for details

Quality Control

Our production of 3-(Trimethylsilyl)-1-propanesulfonic acid adheres to stringent internal quality standards to ensure batch-to-batch consistency and reliability. Each lot is characterized using advanced analytical techniques including NMR, HPLC, and titration methods. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment. We support cGMP-compliant manufacturing for pharmaceutical applications upon request.

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 after opening to prevent degradation. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 1.0%

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