Organic Chemistry Nomenclature
This website is designed to aid individuals in learning the process of naming various organic compounds using the IUPAC naming system for CHEM2000.
Base name prefixes: Number of carbons in longest chain Prefix 1 meth 2 eth 3 prop 4 but 5 pent 6 hex 7 hept 8 oct 9 non 10 dec 11 undec 12 dodec 20 icos
Number of carbons in longest chain
Prefix
1
meth
2
eth
3
prop
4
but
5
pent
6
hex
7
hept
8
oct
9
non
10
dec
11
undec
12
dodec
20
icos
Prefixes for multiple functional groups: Number of identical functional groups Prefix 1 N/A 2 di 3 tri 4 tetra 5 penta 6 hexa 7 hepta 8 octa
Number of identical functional groups
N/A
di
tri
tetra
penta
hexa
hepta
octa
