NaMnO4, or sodium permanganate, is an inorganic compound that appears as dark purple crystals. It is commonly used as an oxidizing agent in various chemical reactions and has applications in water treatment, where it helps remove impurities and disinfect water. In addition to its industrial uses, NaMnO4 is also utilized in laboratories for organic synthesis and as a stain in biological studies. Its strong oxidizing properties make it effective in breaking down organic materials, which is why it is often found in water treatment processes and chemical research.