List of straight-chain alkanes

The members of the series (in terms of number of carbon atoms) are named as follows:
methane, CH4 – one carbon and four hydrogen
ethane, C2H6 – two carbon and six hydrogen
propane, C3H8 – three carbon and 8 hydrogen
butane, C4H10 – four carbon and 10 hydrogen
pentane, C5H12 – five carbon and 12 hydrogen
hexane, C6H14 – six carbon and 14 hydrogen
heptane, C7H16; octane, C8H18;
There are more but iso octane has an antiknock index of 100 and that is what gasolines are compared to. If octane pings at 100, 91 car gas pings at 91% fo the pressure required to make octane ping...