IUPAC nomenclature of chemistry
There are two main areas:
IUPAC nomenclature is used for the naming of chemical compounds, based on their chemical composition and their structure. For example, one can deduce that 1-Chloropropane has a Chlorine atom on the first carbon in the 3-carbon propane chain. Another example is, 1,2-Bromohex-3-ene. From this we are able to gather that there are multiple Bromine atoms. They are on the first and second carbon. We can also deduce that there is a double bond on the third carbon from this six carbon chain. There are different rules for characterizing compounds.