<P> Alcohols are then classified into primary, secondary (sec -, s -), and tertiary (tert -, t -), based upon the number of carbon atoms connected to the carbon atom that bears the hydroxyl functional group . (The respective numeric shorthands 1 °, 2 °, and 3 ° are also sometimes used in informal settings .) The primary alcohols have general formulas RCH OH . The simplest primary alcohol is methanol (CH OH), for which R = H, and the next is ethanol, for which R = CH, the methyl group . Secondary alcohols are those of the form RR'CHOH, the simplest of which is 2 - propanol (R = R' = CH). For the tertiary alcohols the general form is RR'R "COH . The simplest example is tert - butanol (2 - methylpropan - 2 - ol), for which each of R, R', and R" is CH . In these shorthands, R, R', and R" represent substituents, alkyl or other attached, generally organic groups . </P> <Table> <Tr> <Th> Chemical formula </Th> <Th> IUPAC Name </Th> <Th> Common name </Th> </Tr> <Tr> <Td_colspan="3"> Monohydric alcohols </Td> </Tr> <Tr> <Td> CH OH </Td> <Td> methanol </Td> <Td> wood alcohol </Td> </Tr> <Tr> <Td> C H OH </Td> <Td> ethanol </Td> <Td> alcohol </Td> </Tr> <Tr> <Td> C H OH </Td> <Td> propan - 2 - ol </Td> <Td> isopropyl alcohol, rubbing alcohol </Td> </Tr> <Tr> <Td> C H OH </Td> <Td> butan - 1 - ol </Td> <Td> butanol, butyl alcohol </Td> </Tr> <Tr> <Td> C H OH </Td> <Td> pentan - 1 - ol </Td> <Td> pentanol, amyl alcohol </Td> </Tr> <Tr> <Td> C H OH </Td> <Td> hexadecan - 1 - ol </Td> <Td> cetyl alcohol </Td> </Tr> <Tr> <Td_colspan="3"> Polyhydric alcohols </Td> </Tr> <Tr> <Td> C H (OH) </Td> <Td> ethane - 1, 2 - diol </Td> <Td> ethylene glycol </Td> </Tr> <Tr> <Td> C H (OH) </Td> <Td> propane - 1, 2 - diol </Td> <Td> propylene glycol </Td> </Tr> <Tr> <Td> C H (OH) </Td> <Td> propane - 1, 2, 3 - triol </Td> <Td> glycerol </Td> </Tr> <Tr> <Td> C H (OH) </Td> <Td> butane - 1, 2, 3, 4 - tetraol </Td> <Td> erythritol, threitol </Td> </Tr> <Tr> <Td> C H (OH) </Td> <Td> pentane - 1, 2, 3, 4, 5 - pentol </Td> <Td> xylitol </Td> </Tr> <Tr> <Td> C H (OH) </Td> <Td> hexane - 1, 2, 3, 4, 5, 6 - hexol </Td> <Td> mannitol, sorbitol </Td> </Tr> <Tr> <Td> C H (OH) </Td> <Td> heptane - 1, 2, 3, 4, 5, 6, 7 - heptol </Td> <Td> volemitol </Td> </Tr> <Tr> <Td_colspan="3"> Unsaturated aliphatic alcohols </Td> </Tr> <Tr> <Td> C H OH </Td> <Td> Prop - 2 - ene - 1 - ol </Td> <Td> allyl alcohol </Td> </Tr> <Tr> <Td> C H OH </Td> <Td> 3, 7 - Dimethylocta - 2, 6 - dien - 1 - ol </Td> <Td> geraniol </Td> </Tr> <Tr> <Td> C H OH </Td> <Td> Prop - 2 - yn - 1 - ol </Td> <Td> propargyl alcohol </Td> </Tr> <Tr> <Td_colspan="3"> Alicyclic alcohols </Td> </Tr> <Tr> <Td> C H (OH) </Td> <Td> cyclohexane - 1, 2, 3, 4, 5, 6 - hexol </Td> <Td> inositol </Td> </Tr> <Tr> <Td> C H OH </Td> <Td> 2--(2 - propyl) - 5 - methyl - cyclohexane - 1 - ol </Td> <Td> menthol </Td> </Tr> </Table> <Tr> <Th> Chemical formula </Th> <Th> IUPAC Name </Th> <Th> Common name </Th> </Tr> <Tr> <Td_colspan="3"> Monohydric alcohols </Td> </Tr>

Wood alcohol what other elements are in the compound