DMSO ACS Reagent Grade is Dimethyl Sulfoxide that conforms to the American Chemical Society’s (ACS) 9th Edition Specifications for Reagent Chemicals. It meets requirements for general solvent use and is adequate for many basic applications. DMSO ACS Reagent Grade may be used as a solvent for non-spectrophotometric methods of analysis. DMSO is miscible with water in all proportions, and is a useful solvent for gas chromatography. Ideally, analytical applications wherein UV absorption is not critical.