The Dimethyl Sulphoxide (DMSO), available in a 100 mL glass container, falls under the category of General Reagents. It is a Sulphoxide with a molecular weight of 78.14 g/mol, as per its scientific name, methylsulfinylmethane. This reagent is classified within the substance group of Sulphoxides and sulphones. The reagent has a Boiling Point of 372°F at 760 mmHg and a Melting Point of 65.3°F. It is heavier than air and will sink due to its Vapour Density of 2.71. A Warning signal word is associated with this reagent due to its potential for causing skin irritation and being combustible.

• CAS Number: 67-68-5
• Molecular Formula: C2H6OS
• Molecular Weight: 78.14
• Exact Mass: 78.01393598
• Boiling Point: 372 °F at 760 mmHg (NTP, 1992)
• Melting Point: 65.3 °F (NTP, 1992)
• Vapour Density: 2.71 (NTP, 1992) - Heavier than air; will sink (Relative to Air)
• GHS Signal Word: Warning
• Hazard Statements:
• H315 (28.4%): Causes skin irritation [Warning Skin corrosion/irritation]
• H227: Combustible liquid [Warning Flammable liquids]