Ethanol is also known chemically as<unk>  ethyl<unk>  or drinking<unk>  It is a simple<unk> with a molecular formula of C2H6O and a molecular weight of 46.0684 g/mol. The molecular formula of ethanol may also be written as CH3−CH2−OH or as C2H5−OH. The latter can also be thought of as an ethyl group linked to a hydroxyl <unk>  group and can be abbreviated as EtOH. Ethanol is a volatile, flammable, colorless liquid with a slight characteristic odor. Aside from its use as a psychoactive and recreational substance, ethanol is also commonly used as an antiseptic and disinfectant, a chemical and medicinal solvent, and a fuel. Production Ethanol is produced naturally as a byproduct of the metabolic processes of yeast and hence is present in any yeast habitat, including even endogenously in humans, but it does not cause raised blood<unk> content as seen in the rare medical condition auto-brewery syndrome (ABS). It is manufactured through hydration of ethylene or by brewing via fermentation of sugars with yeast (most commonly Saccharomyces cerevisiae). The sugars are commonly obtained from sources like steeped cereal grains (e.g., barley), grape juice, and sugarcane products (e.g., molasses, sugarcane juice). Ethanol–water mixture which can be further purified via distillation. Analogues Ethanol has a variety of analogues, many of which have similar actions and effects. Methanol (methyl<unk>  and isopropyl<unk> (also called rubbing<unk>  are both toxic, and thus unsafe for human consumption. Methanol is the most toxic<unk>  the toxicity of isopropyl<unk> lies between that of ethanol and methanol, and is about twice that of ethanol. In general, higher<unk>  are less toxic. n-Butanol is reported to produce similar effects to those of ethanol and relatively low toxicity (one-sixth of that of ethanol in one rat study). However, its vapors can produce eye irritation and inhalation can cause pulmonary edema. Acetone (propanone) is a ketone rather than an<unk>  and is reported to produce similar toxic effects; it can be extremely damaging to the cornea. The tertiary<unk> tert-amyl<unk> (TAA), also known as 2-methylbutan-2-ol (2M2B), has a history of use as a hypnotic and anesthetic, as do other tertiary<unk>  such as methylpentynol, ethchlorvynol, and chloralodol. Unlike primary<unk>  like ethanol, these tertiary<unk>  cannot be oxidized into aldehyde or carboxylic acid metabolites, which are often toxic, and for this reason, these compounds are safer in comparison. Other relatives of ethanol with similar effects include chloral hydrate, paraldehyde, and many volatile and inhalational anesthetics (e.g., chloroform, diethyl ether, and isoflurane).
Alcohol 
Toxic alcohol
Benzyl alcohol
Tobacco
Cannabis
Cannabis 
Smokeless tobacco
Polychlorinated biphenyl