Examlex
Which of the following options lists major events in the history of life on Earth in the proper order, from earliest to most recent?
Piperidine
An organic compound, a nitrogenous six-membered ring, used as a building block in the synthesis of pharmaceuticals and other organic compounds.
Structure
The arrangement of atoms within a molecule that determines its shape and properties.
3-pentanamine
An organic compound, specifically an amine with the formula C5H11NH2, featuring an amino group attached to the 3rd carbon of a pentane chain.
Structure
The arrangement of atoms within a molecule, defining its chemical properties and behavior.
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