What is 2 2-dimethylbutane?

1. Chemical formula: C6H14
2. Molecular weight: 86.18 g/mol
3. Appearance: A colorless and flammable liquid.
4. boiling point: 100.3 °C (212.5 °F; 373.4 K)
5. Melting point: −161.4 °C (−258.5 °F; 111.8 K)
6. Density: 658 kg/m³ at 20 °C
7. It is commonly used as a fuel additive and solvent.
8. It is an isomer of 2,3-dimethylbutane.
9. It has a branched structure which makes it more stable and less reactive than its straight chain counterparts.
10. It is commonly used as a referent compound to calibrate gas chromatography and mass spectrometry instruments.