Description

Butane Sultone is a versatile sulfonic acid derivative and a key reactive intermediate in organic synthesis. Its primary value lies in its ability to introduce sulfonate groups, enhancing the water solubility, anionic character, and thermal stability of target molecules. This compound is essential for manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries seeking to develop advanced surfactants, electrolytes, and functional materials.

Application

• Pharmaceutical Intermediates: Synthesis of sulfonated active pharmaceutical ingredients (APIs) and prodrugs to improve bioavailability.
• Lithium-Ion Battery Electrolytes: Production of electrolyte additives (e.g., vinyl ethylene sulfite) to form stable solid-electrolyte interphase (SEI) layers.
• Surfactants & Detergents: Manufacturing of anionic surfactants and hydrotropes for industrial and household cleaning formulations.
• Polymer Modification: Functionalization of polymers to introduce sulfonate groups for ion-exchange resins, membranes, and water-soluble polymers.
• Agrochemical Synthesis: Building block for sulfonated herbicides, fungicides, and plant growth regulators.
• Dye & Pigment Industry: Intermediate in the production of water-soluble dyes and pigment dispersants.

Basic Information

Product Name	Butane Sultone
CAS No.	206994-64-1
Molecular Formula	C₄H₈O₃S
Molecular Weight	136.17 g/mol
Synonyms	1,3-Propane sultone; 1,2-Oxathiolane 2,2-dioxide; 3-Hydroxy-1-propanesulfonic acid sultone; 3-Hydroxypropane-1-sulfonic acid γ-sultone; Trimethylene sulfonic acid sultone; Trimethylene sulfone; Propane-1,3-sultone
EINECS	Contact for details

Quality Control

Our Butane Sultone is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including assay by GC/HPLC, identity confirmation (IR, NMR), and impurity profiling, to ensure it meets the high-purity standards required for sensitive synthetic applications. Certificates of Analysis (COA) with full traceability are provided with every shipment.

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). This product is hygroscopic (moisture-sensitive) and should be handled under dry conditions to prevent hydrolysis.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC/HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Related Impurities (GC)	≤ 1.0% (total)

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