2,2-Dimethylbutane

{{#if:OdorlessOdorlessColorless liquid649 mg mL⁻¹3.5136.88 kPa (at 20 °C)6.5 nmol Pa⁻¹ kg⁻¹1.369171175146|! style="background: #F8EABA; text-align: center;" colspan="2" | Properties

2,2-Dimethylbutane
IUPAC name 2,2-Dimethylbutane
Other names Neohexane
Identifiers
CAS number	75-83-2 Y
PubChem	6403
ChemSpider	6163 Y
EC number	1730736
UN number	1208
ChEMBL	CHEMBL142735 Y
Beilstein Reference	1730736
Jmol-3D images	Image 1
SMILES CCC(C)(C)C <p><p style="word-wrap: break-word;">
InChI InChI=1S/C6H14/c1-5-6(2,3)4/h5H2,1-4H3 Y Key: HNRMPXKDFBEGFZ-UHFFFAOYSA-N Y
Molecular formula	C6H14
Molar mass	86.18 g mol−1
Thermochemistry
Std enthalpy of formation ΔfHo298	−214.4–−212.4 kJ mol−1
Std enthalpy of combustion ΔcHo298	−4.1494–−4.1476 MJ mol−1
Standard molar entropy So298	272.00 J K−1 mol−1
Specific heat capacity, C	189.67 J K−1 mol−1
Hazards
GHS pictograms
GHS signal word	DANGER
GHS hazard statements	H225, H304, H315, H336, H411
GHS precautionary statements	P210, P261, P273, P301+310, P331
EU Index	601-007-00-7
EU classification	F Xn N
R-phrases	R11, R38, R51/53, R65, R67
S-phrases	(S2), S16, S29, S33
NFPA 704	3 1 0
Flash point	−29 °C
Autoignition temperature	425 °C
Explosive limits	1.2–7.7%
Related compounds
Related alkanes	Neopentane 2,3-Dimethylbutane Triptane Tetramethylbutane Tetraethylmethane 2,2,4-Trimethylpentane 2,3,3-Trimethylpentane 2,3,4-Trimethylpentane Tetra-tert-butylmethane
Y (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

2,2-Dimethylbutane, trivially known as neohexane, is an organic compound with formula C₆H₁₄ or (H₃C-)₃-C-CH₂-CH₃. It is therefore an alkane, indeed the most compact and branched of the hexane isomers — the only one with a quaternary carbon and a butane (C₄) backbone.

See also

• methylbutane (isopentane)
• 2-methylpentane (isohexane)

References

de:2,2-Dimethylbutan