<unk>  in various forms, are used within medicine as an antiseptic, disinfectant, and antidote.<unk> applied to the skin are used to disinfect skin before a needle stick and before surgery. They may be used both to disinfect the skin of the person and the hands of the healthcare providers. They can also be used to clean other areas and in mouthwashes. Taken by mouth or injected into a vein, ethanol is used to treat methanol or ethylene glycol toxicity when fomepizole is not available. Side effects of<unk> applied to the skin include skin irritation. Care should be taken with electrocautery, as ethanol is flammable. Types of<unk> used include ethanol, denatured ethanol, 1-propanol, and isopropyl<unk><unk>  are effective against a range of microorganisms, though they do not inactivate spores. Concentrations of 60 to 90% work best.<unk> has been used as an antiseptic as early as 1363, with evidence to support its use becoming available in the late 1800s. It is on the World Health Organization's List of Essential Medicines. Commercial formulations of<unk> based hand rub or with other agents such as chlorhexidine are available.
Alcohols 
Haloalkane
Alkylphenol
Nitrate
Gluten
Fruit salt
Glasses
Methanol