Isopropyl Alcohol is a colorless, flammable chemical compound with a strong odor. It is the simplest example of a secondary alcohol, where the alcohol carbon is attached to two other carbons. Isopropyl Alcohol is a structural isomer of propanol and dissolves a wide range of non-polar compounds. It also evaporates quickly and is relatively non-toxic. Isopropyl Alcohol is widely used for pharmaceutical applications due to the low toxicity and as a solvent & cleaning fluid, especially for dissolving oils. Cleaning electronic devices and the lenses of lasers in optical disc drives, removing thermal paste from heat sinks and IC packages becomes easy with Isopropyl Alcohol. It is commonly used to clean prepared optical fibers, effectively removing hot melt adhesive from a large variety of surfaces, removing residual glue from some sticky labels. It can also be used to remove stains from most fabrics, wood, cotton, etc., and as a wetting agent in the fountain solution used in lithographic printing. It is also often used as a solvent for French polishing shellac. Further, Isopropyl Alcohol is also used in disinfecting pads, hand sanitizer, as biological specimen preservative and in DNA extraction.