Saturated hydrocarbon (i.e., containing only single bonds between pairs of carbon atoms and carbon-hydrogen pairs). In the strict usage this refers to molecules in which the skeleton of carbon-carbon single bonds has the form of a Cayley tree and so exhibits the chemical formula C H2+2; occasionally it refers to saturated hydrocarbons with cyclic skeletal closures (cycloalkanes) that have lower relative hydrogen content.
An aliphatic hydrocarbon having the chemical formula CnH2n+2 A normal alkane, or n-alkane is one which does not have a branched carbon backbone. An iso-alkane has a branched, rather than a straight chain, carbon backbone. Alkanes are also known as paraffins. The simplest alkanes are named as follows: CH4 methane C6H14 hexane C2H6 ethane C7H16 heptane C3H8 propane C8H18 octane C4H10 butane C9H20 nonane C5H12 pentane C10H22 decane
Alkanes are chemical compounds that consists only of the elements carbon (C) and hydrogen (H) (i.e. hydrocarbons), wherein each of these atoms are linked together exclusively by single bonds (i.e. they are saturated compounds).