C5H8 (original) (raw)
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Constitution formula for isomers of C5H8 with CAS numbers
The molecular formula C5H8 may refer to any of the following hydrocarbons:
3-Methyl-1-butyne or isopentyne, CAS 598-23-2
1,2-Pentadiene, two _cis_-z isomers, CAS 591-95-7
1,3 Pentadiene, CAS 504-60-9 (racemic mixture)
_cis_-1,3-Pentadiene or (Z)-1,3-pentadiene, CAS 1574-41-0
_trans_-1,3-Pentadiene or (E)-1,3-pentadiene, or Piperylene
1,4-Pentadiene, CAS 591-93-5
2,3-Pentadiene, two axial isomers, CAS 591-96-8 (racemic mixture)
(_R_a)-2,3-Pentadiene, CAS 20431-56-5
(_S_a)-2,3-Pentadiene, CAS 23190-25-2
Butadiene derivatives:
3-Methyl-1,2-butadiene, CAS 598-25-4
2-Methyl-1,3-butadiene or isoprene
Cyclobutane derivatives:
Methylenecyclobutane, CAS 1120-56-5
Cyclobutene derivatives:
1-Methylcyclobutene, CAS 1489-60-7
3-Methylcyclobutene, CAS 1120-55-4 (racemic mixture)
(R)-3-Methylcyclobutene, CAS 20476-28-2
(S)-3-Methylcyclobutene, CAS 30334-81-7
Cyclopropane derivatives:
Ethenylcyclopropane or Vinylcyclopropane
Ethylidenecyclopropane, CAS 18631-83-9
2-Methyl-1-methylenecyclopropane, CAS 18631-84-0 (racemic mixture)
(R)-2-Methyl-1-methylenecyclopropane
(S)-2-Methyl-1-methylenecyclopropane
Cyclopropene derivatives:
1-Ethylcyclopropene, CAS 34189-00-9
3-Ethylcyclopropene, CAS 203442-62-0
1,2-Dimethylcyclopropene, CAS 14309-32-1
1,3-Dimethylcyclopropene, CAS 82190-83-8 (racemic)
(R)-1,3-Dimethylcyclopropene
(S)-1,3-Dimethylcyclopropene
3,3-Dimethylcyclopropene, CAS 3907-06-0
Bicyclo[1.1.1]pentane, CAS 311-75-1
Bicyclo[2.1.0]pentane or housane, CAS 185-94-4
Spiro[2.2]pentane or spiropentane, CAS 157-40-4
The formula may also represent a monovalent functional group derived from any hydrocarbon with formula C
5H
9 by removal of one hydrogen atom; or a divalent group derived from C
5H
10 minus two hydrogens; and so on.