3-Methylpentane

3-Methylpentane
Names
	Preferred IUPAC name 3-Methylpentane
Identifiers
CAS Number	96-14-0 ;
3D model (JSmol)	Interactive image;
Beilstein Reference	1730734
ChEBI	CHEBI:88373 ;
ChEMBL	ChEMBL357767 ;
ChemSpider	7010 ;
ECHA InfoCard	100.002.257
EC Number	202-481-4;
MeSH	3-methylpentane
PubChem CID	7282;
RTECS number	SA2995500;
UNII	XD8O3ML76T ;
UN number	1208
CompTox Dashboard (EPA)	DTXSID8052647 ;
	InChI InChI=1S/C6H14/c1-4-6(3)5-2/h6H,4-5H2,1-3H3 Key: PFEOZHBOMNWTJB-UHFFFAOYSA-N ;
	SMILES CCC(C)CC;
Properties
Chemical formula	C6H14
Molar mass	86.178 g·mol−1
Appearance	Colorless liquid
Odor	Odorless
Density	664 mg mL−1
Melting point	−162.8 °C; −261.1 °F; 110.3 K
Boiling point	62.9 to 63.7 °C; 145.1 to 146.6 °F; 336.0 to 336.8 K
Solubility in water	Insoluble
log P	3.608
Vapor pressure	18.0 kPa (at 17 °C)
Henry's law; constant (kH)	8.8 mol Pa−1 kg−1
Magnetic susceptibility (χ)	−75.52·10−6 cm3/mol
Refractive index (nD)	1.376
Thermochemistry
Heat capacity (C)	191.16 J K−1 mol−1
Std molar; entropy (S⦵298)	292.5 J K−1 mol−1
Std enthalpy of; formation (ΔfH⦵298)	−203.0 – −201.0 kJ mol−1
Std enthalpy of; combustion (ΔcH⦵298)	−4.1608 – −4.1590 MJ mol−1
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H225, H304, H315, H336, H411
Precautionary statements	P210, P261, P273, P301+P310, P331
Flash point	−7 °C (19 °F; 266 K)
Autoignition; temperature	278 °C (532 °F; 551 K)
Explosive limits	1.2–7.7%
	NIOSH (US health exposure limits):
PEL (Permissible)	none
Related compounds
Related alkanes	Isopentane; 2-Methylpentane; 3-Ethylpentane; 2-Methylhexane; 3-Methylhexane;
Related compounds	2-Ethyl-1-butanol; Valnoctamide;
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

3-Methylpentane is a branched alkane with the molecular formula C₆H₁₄. It is a structural isomer of hexane composed of a methyl group bonded to the third carbon atom in a pentane chain. It is of similar structure to the isomeric 2-methylpentane, which has the methyl group located on the second carbon of the pentane chain.

As of early 1990s, it was present in American and European gasoline in small amounts, and by 2011 its share in US gas varied between 1.5 and 6% It has close research and motor octane numbers of 74.5 and 74.3.