Dimethyl Sulfoxide is an organosulfur, colorless liquid and is also known as DMSO. Acting as an important polar aprotic solvent because of its ability to dissolve both polar and non-polar compounds and it's miscibility with a wide range of organic solvents including water. One of DMSO's main characteristics is its ability to penetrate human skin. In the field of biology it is used in PCR as an inhibitor of secondary structures in DNA templates and/or DNA primers. It can also be used as a cryoprotectant, reducing ice formation in cell media and thus preventing necrosis of the cell during the freezing process. Ungraded products supplied by TCI America are generally suitable for common industrial uses or for research purposes but typically are not suitable for human consumption or therapeutic use.