Sulfolane (Tetramethylene Sulfone) [126-33-0] is applied in various analytical and synthetic procedures. It has a molecular formula of C4H8O2S and a molecular weight of 120.17. This compound boils at 285.0 °C, as reported by USCG, and melts at 26.1 °C under the same conditions. A Warning signal word indicates potential hazards associated with this substance.

• CAS Number: 126-33-0
• Vapour Density: 1.26 at 86 °F
• Molecular Formula: C4H8O2S
• Molecular Weight: 120.17
• Boiling Point: 285.0 °C
• Melting Point: 26.1 °C
• Exact Mass: 120.02450067
• GHS Signal Word: Warning
• Hazard Statements:
• H302: Harmful if swallowed [Warning Acute toxicity, oral]
• H320: Causes eye irritation [Warning Serious eye damage/eye irritation]