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Isocetane

Names
IUPAC name 2,2,4,4,6,8,8-Heptamethylnonane
Other names Isohexadecane
Identifiers
CAS Number	4390-04-9
3D model (JSmol)	Interactive image
ChemSpider	19228
ECHA InfoCard	100.022.280
PubChem CID	20414
UNII	918X1OUF1E
CompTox Dashboard (EPA)	DTXSID7052101
InChI InChI=1S/C16H34/c1-13(10-14(2,3)4)11-16(8,9)12-15(5,6)7/h13H,10-12H2,1-9H3Key: VCLJODPNBNEBKW-UHFFFAOYSA-N InChI=1/C16H34/c1-13(10-14(2,3)4)11-16(8,9)12-15(5,6)7/h13H,10-12H2,1-9H3Key: VCLJODPNBNEBKW-UHFFFAOYAC
SMILES CC(CC(CC(CC(C)(C)C)(C)C)C)(C)C
Properties
Chemical formula	C16H34
Molar mass	226.44116
Density	0.793 g/mL
Boiling point	240 °C (464 °F; 513 K)
Hazards
Flash point	204 °F
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Y verify (what is  ?) 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. 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.

References

1. 2,2,4,4,6,8,8-Heptamethylnonane at Sigma-Aldrich
2. New system offers faster, easier method for cetane measurement by Bill Siuru, Diesel Progress, North American Edition, March, 2002
3. Cetane number

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