Isocetane

Isocetane^[1]


IUPAC name 2,2,4,4,6,8,8-Heptamethylnonane
Other names Isohexadecane
Identifiers
CAS number	4390-04-9^Y
PubChem	20414
ChemSpider	19228^Y
UNII	918X1OUF1E^Y
Jmol-3D images	Image 1
SMILES CC(CC(CC(CC(C)(C)C)(C)C)C)(C)C
InChI InChI=1S/C16H34/c1-13(10-14(2,3)4)11-16(8,9)12-15(5,6)7/h13H,10-12H2,1-9H3^Y Key: VCLJODPNBNEBKW-UHFFFAOYSA-N^Y InChI=1/C16H34/c1-13(10-14(2,3)4)11-16(8,9)12-15(5,6)7/h13H,10-12H2,1-9H3 Key: VCLJODPNBNEBKW-UHFFFAOYAC
Properties
Molecular formula	C₁₆H₃₄
Molar mass	226.44116
Density	0.793 g/mL
Boiling point	240 °C, 513 K, 464 °F
Hazards
Flash point	204 °F
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

Isocetane (2,2,4,4,6,8,8-heptamethylnonane) is a highly branched alkane used as a reference in determining the cetane number of diesel.^[2] It is given a cetane number of 15. Isocetane replaced 1-methylnaphthalene as the lower reference for cetane number (1-methylnaphthalene has cetane number zero) owing to the expense of 1-methylnaphthalene, and difficulty in safe handling.^[3]

References

^ 2,2,4,4,6,8,8-Heptamethylnonane at Sigma-Aldrich
^ New system offers faster, easier method for cetane measurement by Bill Siuru, Diesel Progress, North American Edition, March, 2002
^ Cetane number