Dienes

1,3-Butadiene is a simple conjugated diene with the formula C4H6.

Chloroprene is the common name for the organic compound 2-chlorobuta-1,3-diene, which has the formula CH2=CCl−CH=CH2.

Cyclobutadiene is the smallest [n]-annulene ([4]-annulene), an extremely unstable hydrocarbon having a lifetime shorter than five seconds in the free state.

Cyclopentadiene is an organic compound with the formula C5H6.

Isoprene, or 2-methyl-1,3-butadiene, is a common organic compound with the formula CH2=C(CH3)-CH=CH2.

Myrcene, or β-myrcene, is an olefinic natural organic hydrocarbon.

Piperine, along with its isomer chavicine, is the alkaloid responsible for the pungency of black pepper and long pepper.

Piperylene is a volatile, flammable hydrocarbon consisting of a five carbon chain with two double bonds.

Bombykol is a pheromone released by the female silkworm moth to attract mates.

Norbornadiene is a bicyclic, hydrocarbon and an organic compound.

Phellandrene is the name for a pair of organic compounds that have a similar molecular structure and similar chemical properties.

Epristeride (SKF-105,657, ONO-9302) is a selective, transition state, non-competitive inhibitor of the type II isoform of the enzyme 5α-reductase, similarly to finasteride and turosteride.

Dicyclopentadiene, abbreviated DCPD, is a chemical compound with formula C10H12.

Taxadiene (taxa-4,11-diene) is a diterpene.

Hexachlorobutadiene, Cl2C=C(Cl)C(Cl)=CCl2, is a colorless liquid at room temperature that has an odor similar to that of turpentine.

Dimethylbutadiene, formally referred to as 2,3-dimethyl-1,3-butadiene, is an organic compound with the formula (CH3)2C4H4.

1,2,3,4,5-Pentamethylcyclopentadiene is a cyclic dialkene with the formula C5Me5H (Me = CH3).

Bullvalene is a hydrocarbon with the chemical formula C10H10 with the unusual property that the chemical bonds making up the molecule are constantly rearranging as in fluxional molecules.

Myrcenol is an organic compound, specifically a terpenoid.

Methoprene is a juvenile hormone (JH) analog which acts as a growth regulator when used as an insecticide.

1,7-Octadiene (C8H14) is a light flammable organic compound.

Spiropentadiene, or bowtiediene, is a hydrocarbon with formula C5H4.

1,5-Cyclooctadiene is the organic compound with the chemical formula C8H12.

Danishefsky’s diene (Kitahara diene) is an organosilicon compound and a diene with the formal name trans-1-methoxy-3-trimethylsilyloxy-1,3-butadiene named after Samuel J.

Hexachlorocyclopentadiene, also known as C-56, is an organochlorine compound that is a precursor to several pesticides.

Methylcyclopentadiene describes three isomeric cyclic dialkenes with the formula C5MeH5 (Me = CH3).

1,3-Cycloheptadiene is a highly flammable cycloalkene that occurs as a colorless clear liquid.

1,4-Cycloheptadiene is a highly flammable cycloalkene that occurs as a colorless clear liquid.

Trimethylsilyl cyclopentadiene is an organosilicon compound with the chemical formula C8H14Si.