Heptadecane

Heptadecane

Names
IUPAC name Heptadecane
Other names n-Heptadecane
Identifiers
CAS Number	629-78-7 Y
3DMet	B00353
Beilstein Reference	1738898
ChEBI	CHEBI:16148 Y
ChemSpider	11892 Y
EC Number	211-108-4
Jmol 3D model	Interactive image
KEGG	C01816 Y
MeSH	heptadecane
PubChem	12398
RTECS number	MI3550000
InChI InChI=1S/C17H36/c1-3-5-7-9-11-13-15-17-16-14-12-10-8-6-4-2/h3-17H2,1-2H3 Y Key: NDJKXXJCMXVBJW-UHFFFAOYSA-N Y
SMILES CCCCCCCCCCCCCCCCC
Properties
Chemical formula	C17H36
Molar mass	240.48 g·mol−1
Appearance	Colorless liquid
Odor	Odorless
Density	777 mg mL−3
Melting point	21.1 to 22.9 °C; 69.9 to 73.1 °F; 294.2 to 296.0 K
Boiling point	301.9 °C; 575.3 °F; 575.0 K
Vapor pressure	100 Pa (at 115 °C)
Henry's law constant (kH)	180 nmol Pa−1 kg−1
Refractive index (nD)	1.436
Thermochemistry
Specific heat capacity (C)	534.34 J K−1 mol−1
Std molar entropy (So298)	652.24 J K−1 mol−1
Std enthalpy of formation (ΔfHo298)	−481.9–−477.1 kJ mol−1
Std enthalpy of combustion (ΔcHo298)	−11.3534–−11.3490 MJ mol−1
Vapor pressure	{{{value}}}
Related compounds
Related alkanes	Hexadecane Octadecane
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Heptadecane is an organic compound, an alkane hydrocarbon with the chemical formula C₁₇H₃₆. The name may refer to any of 24894 theoretically possible structural isomers, or to a mixture thereof.

The unbranched isomer is normal or n-heptadecane, CH₃(CH₂)₁₅CH₃. In the IUPAC nomenclature, the name of this compound is simply heptadecane, since the other isomers are viewed and named as alkyl-substituted versions of smaller alkanes.

The most compact and branched isomer would be 3,3-di-tert-butyl-2,2,4,4-tetramethylpentane, but its existence is believed to be impossible due to steric hindrance. Indeed, it is believed to be the smallest "impossible" alkane.

External links

• List of plant species containing heptadecane, Dr. Duke's Phytochemical and Ethnobotanical Databases