Dimethyl sulfoxide (DMSO) is a colorless, odorless liquid that is a byproduct of wood processing. It is known for its ability to dissolve both polar and nonpolar compounds, making it a versatile solvent in laboratories and industrial applications. DMSO is also used in pharmaceuticals and as a cryoprotectant for preserving biological samples. In addition to its solvent properties, DMSO has anti-inflammatory and analgesic effects, which have led to its use in treating conditions like arthritis and muscle pain. However, its use in medicine is regulated, and it is important to consult healthcare professionals before using it for therapeutic purposes.