Word root - IUPAC System of Naming Organic Compounds
The word root represents the number of carbon atoms that are present in the chain.
Table:
Chain length
|
Word root
|
Chain length
|
Word root
|
|
C1
|
Meth-
|
C11
|
Undec-
|
|
C2
|
Eth-
|
C12
|
Dodec-
|
|
C3
|
Prop-
|
C13
|
Tridec-
|
|
C4
|
But-
|
C14
|
Tetradec-
|
|
C5
|
Pent-
|
C15
|
Pentadec-
|
|
C6
|
Hex-
|
C16
|
Hexadec-
|
|
C7
|
Hept-
|
C17
|
Heptadec-
|
|
C8
|
Oct-
|
C18
|
Octadec-
|
|
C9
|
Non-
|
C19
|
Nonadec-
|
|
C10
|
Dec-
|
C20
|
Eicos
|