IUPAC SYSTEM IMPORTANT

Number of Carbon Atoms: 1

meth-

Number of Carbon Atoms: 2

eth-

Number of Carbon Atoms: 3

prop-

Number of Carbon Atoms: 4

but-

Number of Carbon Atoms: 5

pent-

Number of Carbon Atoms: 6

hex-

Number of Carbon Atoms: 7

hept-

Number of Carbon Atoms: 8

oct-

Number of Carbon Atoms: 9

non-

Number of Carbon Atoms: 10

dec-

Number of Carbon Atoms: 11

undec-

Number of Carbon Atoms: 12

dodec-

Number of Carbon Atoms: 13

tridec-

Number of Carbon Atoms: 14

tetradec-

Number of Carbon Atoms: 15

pentadec-

Number of Carbon Atoms: 16

hexadec-

Number of Carbon Atoms: 17

heptadec-

Number of Carbon Atoms: 18

octadec-

Number of Carbon Atoms: 19

nonadec-

Number of Carbon Atoms: 20

eicos-

All single bonds

-an-

One or more double bonds

-en-

One or more triple bonds

-yn-

Class of compound: hydrocarbon

-e

Class of compound:alcohol

-ol

Class of compound: aldehyde

-al

Class of compound: amine

-amine

Class of compound: ketone

-one

Class of compound: carboxylic acid

-oic acid

Methyl (Me)

Ethyl (Et)

Propyl (Pr)

1-Methylethyl (isopropyl, -iPr)

Butyl (Bu)

2-Methylpropyl (sec-butyl, s-Bu)

1-Methylpropyl (sec-butyl, s-Bu)

1-1-Dimethylethyl (tert-butyl, t-Bu)

Pentyl

3-Methylbutyl (isopentyl)

2-Methylbutyl

2, 2-Dimethylpropyl (neopentyl)