The paraffin series, also known as the alkane series, is a group of hydrocarbons in which each member molecule contains one more methylene group (-CH2-) than the previous member. They are chemically unreactive, saturated hydrocarbons with the general formula CnH2n 2. The term paraffin is derived from two Latin words, parum (little) and affinis (affinity), reflecting their very low reactivity. The first four members of the series are methane, ethane, propane, and butane.
