Oxygen carrier protein in our red blood cells.

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Methanol (methyl alcohol) (CH₃OH)

The simplest saturated alcohol. A highly toxic compound, easily confusable with ethanol.

Pyrimidine (C₄H₄N₂)

A heterocyclic organic compound, its derivatives are thymine, cytosine and uracil.

The production of ethylene and its reaction with bromine water

Ethylene, produced by the heating of polyethylene, changes the colour of bromine water.

1,3 Butadiene (C₄H₆)

The simplest conjugated diene.


One of the 20 amino acids that make up proteins. Its amino group and the 3rd carbon atom...

Purine (C₅H₄N₄)

A heterocyclic aromatic organic compound, its derivatives include guanine and adenine.

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