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A colourless liquid, easily solved by organic solvents but not by water.
A colourless, heavier-than-air gas. Its geometric isomer is trans-2-butene.
A non-polar amino acid. L and D molecules are mirror images of each other.
Ethylene, produced by the heating of polyethylene, changes the colour of bromine water.
The simplest conjugated diene.
Triglycerides containing unsaturated fatty acids are liquid at room temperature.
One of the 20 amino acids that make up proteins.
The building material of the cell walls and fibres of plants.