Description

3-Sulfolene is a versatile heterocyclic organic compound, also known as 2,5-dihydrothiophene-1,1-dioxide, with the CAS number 77-79-2. It serves as a highly valuable precursor and intermediate in organic synthesis, prized for its ability to act as a stable, solid source of 1,3-butadiene. This product is essential for research institutions and industrial manufacturers engaged in the production of specialty chemicals, polymers, and active pharmaceutical ingredients (APIs).

Application

• As a key Diels-Alder diene precursor for synthesizing complex cyclic and polycyclic compounds in fine chemical and pharmaceutical research.
• Intermediate in the production of sulfolane, a critical industrial solvent used in gas purification (sweetening) and extraction processes.
• Monomer or co-monomer in the synthesis of specialty polymers and resins with specific thermal or chemical resistance properties.
• Building block for agrochemicals, including the synthesis of certain herbicides and fungicides.
• Used in material science research for developing novel organic electronic materials or conductive polymers.
• Starting material for synthesizing various sulfur-containing heterocycles of interest in medicinal chemistry.

Basic Information

Product Name	3-Sulfolene
CAS No.	77-79-2
Molecular Formula	C4H6O2S
Molecular Weight	118.15 g/mol
Synonyms	2,5-Dihydrothiophene-1,1-dioxide; Butadiene sulfone; 2,5-Dihydrothiophene 1,1-dioxide; 3-Sulfolene; Thiophene-1,1-dioxide, 2,5-dihydro-; NSC 28693; 1,1-Dioxo-2,5-dihydrothiophene
EINECS	201-058-1

Quality Control

Our 3-Sulfolene is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and consistency for your critical processes.

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 oxidizing agents and strong bases.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	64 - 67 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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