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Systematic Nomenclature (IUPAC System)
Prefix-Parent-Suffix
Parent- number of carbons
Prefix- substituents
Suffix- functional groups
Naming Alkanes
General Formula: C
n
H
(2n+2)
suffix: -ane
Parent Names:
1.
CH
4
Meth
ane
CH
4
2.
CH
3
CH
3
Eth
ane
C
2
H
6
3.
CH
3
CH
2
CH
3
Prop
ane
C
3
H
8
4.
CH
3
(CH
2
)
2
CH
3
But
ane
C
4
H
10
5.
CH
3
(CH
2
)
3
CH
3
Pent
ane
C
5
H
12
6.
CH
3
(CH
2
)
4
CH
3
Hex
ane
C
6
H
14
7.
CH
3
(CH
2
)
5
CH
3
Hept
ane
C
7
H
16
8.
CH
3
(CH
2
)
6
CH
3
Oct
ane
C
8
H
18
9.
CH
3
(CH
2
)
7
CH
3
Non
ane
C
9
H
20
10.
CH
3
(CH
2
)
8
CH
3
Dec
ane
C
10
H
22
Alkyl Substituents
R= Rest of the molecule
1.
CH
3
-R
Meth
yl
2.
CH
3
CH
2
-R
Eth
yl
3.
CH
3
CH
2
CH
2
-R
Prop
yl
4.
CH
3
(CH
2
)
2
CH
2
-R
But
yl
5.
CH
3
(CH
2
)
3
CH
2
-R
Pent
yl
6.
CH
3
(CH
2
)
4
CH
2
-R
Hex
yl
7.
CH
3
(CH
2
)
5
CH
2
-R
Hept
yl
8.
CH
3
(CH
2
)
6
CH
2
-R
Oct
yl
9.
CH
3
(CH
2
)
7
CH
2
-R
Non
yl
10.
CH
3
(CH
2
)
8
CH
2
-R
Dec
yl
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Rules for Systematic Nomenclature of Alkanes
1.
Find the parent chain
a.
Identify the longest continuous carbon chain as the parent chain.

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- Fall '08
- SULIKOWSKI
- CH CH CH, Methane, IUPAC System, Pentyl Hexyl Heptyl Octyl Nonyl Decyl
-
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