Octane is an organic compound and a major component of gasoline, known for its characteristic gasoline odour. This colourless, highly flammable liquid is a straight-chain alkane consisting of 8 carbon atoms. Octane has 18 isomers, with 2, 2, 4-trimethylpentane, also known as isooctane, being one of the key ones. Let's delve deeper into the chemical makeup and properties of octane.
| Chemical formula | C8H18 |
| Molar mass | 114.232 g/mol |
| Alternate names | n-octane, 111-65-9, Oktan, Oktanen |
| Density | 0.703 g cm−3 |
| Boiling point | 125.1 to 126.1 °C |
| Melting point | −57.1 to −56.6 °C |