CH3COOH \mathrm {CH_3COOH}CH3COOH
CH2(OH)CH2(OH) \mathrm {CH_2(OH)CH_2(OH)}CH2(OH)CH2(OH)
CH3OH \mathrm {CH_3OH}CH3OH
CH3CH2OH \mathrm {CH_3CH_2OH}CH3CH2OH