Prefixes for Organic Molecules
# of Carbon
Atoms
Prefix
1 Meth
2 Eth
3Prop
4But
5Pent
6Hex
7Hept
8Oct
9Non
10Dec
11Undec
12Dodec
13Tridec
14Tetradec
15Pentadec
16Hexadec
17Heptadec
18Octadec
19Nonadec
20Icos