Iodoform or tri-iodomethane is an organic compound with the molecular formula CHI3. The substance occurs as pale yellow, volatile crystals with a characteristic odor. In older chemical texts, the smell is described as hospital smell. Like chloroform, the compound gives a sweetish taste sensation. Iodoform is sparingly soluble in water, glycerol and petroleum ether, sparingly soluble in chloroform and acetic acid. The substance is readily soluble in benzene, ethanol (78 g/L at 25°C), acetone (120 g/L at 25°C) and diethyl ether (136 g/L at 25°C).