Dimethyl sulphoxide (DMSO)

The product under consideration is Dimethyl Sulphoxide (DMSO), a sulphoxide compound with a Molecular Weight of 78.14 g/mol, categorized within the ROTIDRY® Sept – Dried Solvents in Septum Bottles. This substance belongs to the group of Sulphoxides and sulphones and is identified by the CAS Number 67-68-5. It has a Melting Point of 65.3°F and boils at 372°F under standard conditions. The Vapour Density is 2.71, indicating that it is heavier than air and will sink. A Warning signal word is associated with this substance 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]