Yes, OxiClean can be used to remove tomato sauce stains. To do so, first pre-treat the stain with a mixture of one tablespoon of OxiClean and two tablespoons of water. Allow it to sit for five minutes before blotting the area with warm water and a clean cloth or sponge. Then, launder as usual using hot water if possible. If you are still seeing some residue after laundering, repeat the process until the stain is completely gone.