Heptene

Not to be confused with heptane or heptyne.

1-Heptene

Names
Preferred IUPAC name Hept-1-ene
Identifiers
CAS Number	1-heptene: 592-76-7 Y 2-heptene: 592-77-8 3-heptene: 592-78-9
3D model (JSmol)	1-heptene: Interactive image 3-heptene: Interactive image cis-2-: Interactive image trans-2-: Interactive image
ChemSpider	11121 Y
ECHA InfoCard	100.008.881
EC Number	2-heptene: 209-768-3 3-heptene: 209-769-9
PubChem CID	1-heptene: 11610 2-heptene: 11611 3-heptene: 11612 cis-2-: 643836 trans-2-: 639662
UNII	O748KJ11V7 Y
UN number	2278
CompTox Dashboard (EPA)	DTXSID2060466
InChI 1-heptene: InChI=1S/C7H14/c1-3-5-7-6-4-2/h3H,1,4-7H2,2H3 Y Key: ZGEGCLOFRBLKSE-UHFFFAOYSA-N Y 3-heptene: InChI=1S/C7H14/c1-3-5-7-6-4-2/h5,7H,3-4,6H2,1-2H3 Key: WZHKDGJSXCTSCK-UHFFFAOYSA-N cis-2-: InChI=1S/C7H14/c1-3-5-7-6-4-2/h3,5H,4,6-7H2,1-2H3/b5-3- Key: OTTZHAVKAVGASB-HYXAFXHYSA-N trans-2-: InChI=1S/C7H14/c1-3-5-7-6-4-2/h3,5H,4,6-7H2,1-2H3/b5-3+ Key: OTTZHAVKAVGASB-HWKANZROSA-N
SMILES 1-heptene: C=CCCCCC 3-heptene: CCCC=CCC cis-2-: CCCC/C=C\C trans-2-: CCCC/C=C/C
Properties
Chemical formula	C7H14
Molar mass	98.189 g·mol−1
Appearance	Colorless liquid
Density	0.697 g/mL
Melting point	−119 °C (−182 °F; 154 K)
Boiling point	94 °C (201 °F; 367 K)
Hazards
GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H225, H304, H410
Precautionary statements	P210, P233, P240, P241, P242, P243, P273, P280, P301+P310, P303+P361+P353, P331, P370+P378, P391, P403+P235, P405, P501
Flash point	−9 °C (16 °F; 264 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is YN ?) Infobox references

Heptene is a higher olefin, or alkene with the formula C₇H₁₄. The commercial product is a liquid that is a mixture of isomers. It is used as an additive in lubricants, as a catalyst, and as a surfactant. This chemical is also known as heptylene.

• 
  A log-lin vapor pressure chart of Heptene compared with various liquids

Further reading

• Carl Schaschke, 2014, A Dictionary of Chemical Engineering, Oxford University Press.
• G. I. Nikishin, Yu. N. Ogibin & L. Kh. Rakhmatullina, 1975, ‘Peroxydisulfate-initiated reactions of 1-heptene with acetic and propionic acids’, Bulletin of the Academy of Sciences of the USSR, Division of chemical science, volume 23, pages1479–1483
• Yu. D. Shenin, T. V. Kotenko & A. N. Egorenkova, Nystatin. IV. 1969, The heptaene component of samples of nystatin-nursimicin, Pharmaceutical Chemistry Journal volume 3, pages 631–634
• Nicholas E. Leadbeater, Cynthia B. McGowan, 2013, Experiment 2: Second-Order Elimination Reaction Preparation of Heptene from 2-Bromoheptane, Laboratory Experiments Using Microwave Heating, chapter 3
• E. S. Mortikov, M. I. Rozengart & B. A. Kazanskii, 1968, Dehydrocyclization of n-heptenes under conditions of a pulsed system and in the usual flow-type setup, Bulletin of the Academy of Sciences of the USSR, Division of chemical science volume 17, pages95–98(1968)