Organic Functional Groups

R-OH Alcohol CH3-CH2-CH(OH)-CH3 2-butanol
R-X Alkyl Halide CH2Br - CH2Br - CH3 1,2-dibromopropane
R-CO-H Ether   diethyl ether
R-COOH Aldehydes   ethanal
R-CO-R' Ketone   2-pentanone
R-COOH Carboxylic Acids   butanoic acid
R-CO-O-R' Esters   ethyl butanoate
R-NH2 Amine   methyl amine
R-SH

Thiol