Methanol, also known as hydroxymethane, is an organic compound and the simplest saturated monohydric alcohol . Its chemical formula is CH₃OH/CH?O, of which CH?OH is a simple structural formula, which can highlight the hydroxyl group of methanol. The CAS number is 67-56-1, the molecular weight is 32.04, and the boiling point is 64.7°C. It is also called "wood alcohol" or "wood spirit" because it was first discovered in dry distilled wood. The lowest human oral poisoning dose is about 100 mg/kg body weight, and oral intake of 0.3 to 1 g/kg can be fatal. For the manufacture of formaldehyde and pesticides, and as the organic extractant and alcohol denaturant like. The finished product is usually made by reacting carbon monoxide with hydrogen.