Nonpolar or Hydrophobic

# of Carbons	Group	Name	Example
1	-CH₃	Methyl (Formyl)	Methane
2	-CH₂-CH₃	Ethyl (acetyl)	Ethane
3	-CH₂-CH₂-CH₃	Propyl	Propane
4	-CH₂-CH₂-CH₂-CH₃	Butyl	Butane
5	-CH₂-CH₂-CH₂-CH₂-CH₃	Pentyl	Pentane
6	-CH₂-CH₂-CH₂-CH₂-CH₂-CH₃	Hexyl	Hexane
6 in a ring with alternating double and single bonds		Phenyl	DDT electrostatic surface

Polar

		Water electrostatic surface
R-O-H	Alcohol ends in -ol	Methanol electrostatic surface
R-NH₂ R-NH₃+	Amine ends in -ine	Dopamine electrostatic surface
	Carbonyl ends in -one Aldehyde (if on end carbon) ends in -al	Formaldehyde electrostatic surface
	Carboxylic Acid ends in -ic acid or -ate	Acetic Acid electrostatic surface
	Amide	Aspartame electrostatic surface