Saccharin is an artificial sweetener. The basic substance, benzoic sulfimide, has effectively no food energy and is much sweeter than sucrose, but has an unpleasant bitter or metallic aftertaste, especially at high concentrations. In countries where saccharin is allowed as a food additive, it's used to sweeten products such as drinks, candies, medicines, and toothpaste. Properties Saccharin is unstable when heated but it doesn't react chemically with other food ingredients. As such, it stores w… (More on Saccharin)