Skunk spray is composed mainly of three low molecular weight compounds, (E)-2-butene-1-thiol, 3-methyl-1-butanethiol, and 2-quinolinemethanethiol, as well as the
acetate thioesters of these.
These compounds are detectable by the human nose at concentrations of only 10 parts per billion.
Skunk spray is not necessarily "made". Skunk spray is a liquid or gas like substance that is produced in the glands for defending themselves which is why they spray.
oxygen
This gas is carbon dioxide.
When in danger, skunks are known for their ability to spray a repulsive gas from their behinds.
carbon dioxide
hydrogen
Natural gas is natural gas. It is not made from crude oil or anything else. Thus the name.
hydrogen
It is produced by reacting nitrogen gas with hydrogen gas.
Chlorine gas is produced.
Stella
Mephitis mephitis