C
5
H
10
O Isomers
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Boiling Point
CH
3
CH
2
CH
2
CH
2
C(=O)H
103°C
CH
3
CH
2
CH(CH
3
)C(=O)H
92°C
(CH
3
)
2
CHCH
2
C(=O)H
92°C
(CH
3
)
3
CC(=O)H
103°C
CH
3
CH
2
CH
2
C(=O)CH
3
102°C
CH
3
CH
2
C(=O)CH
2
CH
3
102°C
(CH
3
)
2
CHC(=O)CH
3
94°C
CH
2
=CHCH
2
CH
2
CH
2
OH
135°C
CH
2
=CHCH
2
CH(OH)CH
3
115°C
CH
2
=CHCH(OH)CH
2
CH
3
114°C
CH
2
=C(OH)CH
2
CH
2
CH
3
115°C
trans
HOCH=CHCH
2
CH
2
CH
3
*134°C
cis
HOCH=CHCH
2
CH
2
CH
3
CH
2
=C(CH
3
)CH
2
CH
2
OH
131°C
CH
2
=C(CH
3
)CH(OH)CH
3
114°C
CH
2
=C(CH
2
OH)CH
2
CH
3
132°C
(
E
) HOCH=C(CH
3
)CH
2
CH
3
*129°C
(
Z
) HOCH=C(CH
3
)CH
2
CH
3
CH
2
=CHCH(CH
3
)CH
2
OH
120°C
CH
2
=CHC(OH)(CH
3
)
2
98°C
trans
CH
3
CH=CHCH
2
CH
2
OH
*134°C
cis
CH
3
CH=CHCH
2
CH
2
OH
trans
CH
3
CH=CHCH(OH)CH
3
*120°C
cis
CH
3
CH=CHCH(OH)CH
3
(
E
) CH
3
CH=C(OH)CH
2
CH
3
*97°C
(
Z
) CH
3
CH=C(OH)CH
2
CH
3
(
E
) CH
3
C(OH)=CHCH
2
CH
3
*98°C
(
Z
) CH
3
C(OH)=CHCH
2
CH
3
trans
HOCH
2
CH=CHCH
2
CH
3
*139°C
cis
HOCH
2
CH=CHCH
2
CH
3
cyclopentanol
139°C
cyclobutanemethanol
143°C
1-methylcyclobutanol
111°C
trans
-2-methylcyclobutanol
*131°C
cis
-2-methylcyclobutanol
trans
-3-methylcyclobutanol
*133°C
cis
-3-methylcyclobutanol
CH
2
=CHCH
2
CH
2
OCH
3
68°C
CH
2
=CHCH
2
OCH
2
CH
3
65°C
CH
2
=CHOCH
2
CH
2
CH
3
65°C
CH
2
=CHOCH(CH
3
)
2
58°C
CH
2
=C(CH
3
)OCH
2
CH
3
61°C
trans
CH
3
CH=CHCH
2
OCH
3
*68°C
cis
CH
3
CH=CHCH
2
OCH
3
trans
CH
3
CH=CHOCH
2
CH
3
*70°C
cis
CH
3
CH=CHOCH
2
CH
3
trans
CH
3
OCH=CHCH
2
CH
3
*68°C
cis
CH
3
OCH=CHCH
2
CH
3
CH
3
OCH=C(CH
3
)
2
67°C
trans
CH
3
CH=C(CH
3
)OCH
3
*67°C
cis
CH
3
CH=C(CH
3
)OCH
3
(CH
2
)
5
O or oxane**
88°C
2-methyloxolane
80°C
3-methyloxolane
89°C
2,2-dimethyloxetane
71°C
3,3-dimethyloxetane
81°C
trans
-2,3-dimethyloxetane
*76°C
cis
-2,3-dimethyloxetane
trans
-2,4-dimethyloxetane
*76°C
cis
-2,4-dimethyloxetane
Electrostatic Potential Key
*Boiling point data for
trans
(
E
) and
cis
(
Z
)
does not specify which isomer.
**Nomenclature for saturated
n
cyclic ethers:
oc (8), oxep (7), ox (6), oxol (5), oxet (4), oxir (3) with "ane" indicating saturation.
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Three-membered rings (cyclopropanes and epoxides) excluded.
Molecules modified from
PubChem
.
This page created by George Lisensky, Beloit College.
Last modified December 16, 2025.
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