Description

1,4-Butane Sultone is a versatile organosulfur compound and a key sulfonating agent in organic synthesis. Its high reactivity makes it an essential building block for introducing sulfonate groups into target molecules, enabling the creation of surfactants, electrolytes, and functional polymers. This chemical is particularly valuable for manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries seeking to develop advanced materials with specific ionic or hydrophilic properties.

Application

• Sulfonation Agent: Primary reagent for the synthesis of sulfonic acids, sulfonates, and sulfonamides in fine chemical production.
• Lithium-Ion Battery Electrolytes: Key precursor for synthesizing sulfonate-based additives and lithium salts (e.g., LiBOB derivatives) to enhance electrolyte stability and battery performance.
• Surfactant & Detergent Intermediate: Used in the manufacture of anionic surfactants, betaines, and other amphoteric compounds for industrial and personal care formulations.
• Pharmaceutical Intermediates: Building block for active pharmaceutical ingredients (APIs) and prodrugs requiring sulfonate functionality for improved solubility or biological activity.
• Polymer Modification: Employed to synthesize sulfonated polymers, ion-exchange resins, and hydrogels with specific ionic conductivity or water-absorption properties.
• Agrochemical Synthesis: Intermediate in the production of certain herbicides and fungicides where the sulfonate group is critical for efficacy.
• Dye & Pigment Manufacturing: Used to create sulfonated dyes and pigments with enhanced water solubility and fiber affinity.
• Research & Development: Valuable tool in organic chemistry R&D for exploring new synthetic routes and functional materials.

Basic Information

Item	Details
Product Name	1,4-Butane Sultone
CAS No.	1633-83-6
Molecular Formula	C4H8O3S
Molecular Weight	136.17 g/mol
Synonyms	1,4-Butanesultone; 1,2-Oxathiane 2,2-Dioxide; 3-Hydroxy-1-propanesulfonic acid sulfone; 4-Hydroxy-1-butanesulfonic acid γ-sultone; Tetramethylene sulfone; Butane-1,4-sultone; 1,4-BS; BSL
EINECS	216-652-1

Quality Control

Our 1,4-Butane Sultone is produced under stringent quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including assay, impurity profiling, and identity confirmation. Certificates of Analysis (COA) documenting purity, physical properties, and safety data are available for every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong acids, bases, and oxidizing agents. Due to its reactivity as a strong acid/organic solvent, ensure containers are kept tightly sealed to prevent moisture absorption and decomposition.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.450 - 1.455
Density (20°C)	1.33 - 1.36 g/mL

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