Artenimol, also known as dihydroartemisinin (CAS number: 71939-50-9), is a pharmaceutical substance used in the treatment of malaria. It is derived from the Chinese herb Artemisia annua and belongs to the artemisinin class of antimalarial agents. Artenimol acts by rapidly killing the malaria parasites in the blood, making it highly effective in the treatment of both uncomplicated and severe cases of malaria. Its mechanism of action involves the production of reactive oxygen species, which cause oxidative stress and damage to the parasite’s cell structures. Artenimol is typically administered in combination with other antimalarial drugs to prevent the development of drug resistance.