30% of weight by volume(w/v) hydrogen peroxide
or 100 volume strength hydrogen peroxide is perhydrol.
Perhydrol is another term for hydrogen peroxide, which is a clear, colorless liquid commonly used as a disinfectant, bleaching agent, and oxidizer. It is highly reactive and can be used for various purposes, including in hair bleaching, wound disinfection, and cleaning surfaces.
The IUPAC name is hydrogen peroxide. Other, less common, names include dioxidane and dihydrogen dioxide If you let it sit out in open air, it will decompose into H2O and O2. 2H2O2 --> 2H2O + O2