Heptane has nine isomers, or eleven if enantiomers are counted: The linear n-heptane can be obtained from Jeffrey pine oil. No Tweets to display, check your settings. umn class: Standard non-polar; Column length: 1 m; Column type: Packed; Start T: 120 C; CAS no: 111706; Active phase: SE-30; Carrier gas: Ar; Substrate: Chromosorb W AW DMCS HP (80-100 mesh); Data type: Kovats RI; Authors: Pias, J.B.; Gasco, L., GC Retention Data of Alcohols and Benzoyl Derivatives of Alcohols, J. Chromatogr.
In water, both bromine and iodine appear brown.
; Maltby, D., Prediction of retention indexes.
The result is that the molecules are either constitutional isomers or stereoisomers solely based on isotopic location.
; Wood, J.D., Dietary manipulation of fatty acid composition in lamb meat and its effect on the volatile aroma compounds of grilled lamb, Meat Sci., 69, 2005, 233-242. class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: 50C (1min) =>5C/min => 100C => 10C/min => 250C (9min); CAS no: 111706; Active phase: DB-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Beaulieu, J.C.; Grimm, C.C., Identification of volatile compounds in cantaloupe at various developmental stages using solid phase microextraction, J. Agric.
J. Enol. ; Marbot, R.; Vazquez, C., Characterization of volatiles in Loquat fruit (Eriobotrya japonica Lindl.
umn class: Standard non-polar; Column length: 2 m; Column type: Packed; Start T: 100 C; CAS no: 111706; Active phase: SE-30; Substrate: Chromosorb W; Data type: Kovats RI; Authors: Zarazir, D.; Chovin, P.; Guiochon, G., Identification of hydroxylic compounds and their derivatives by gas chromatography, Chromatographia, 3, 1970, 180-195. umn class: Semi-standard non-polar; Column diameter: 0.31 mm; Column length: 25 m; Column type: Capillary; Start T: 75 C; CAS no: 111706; Active phase: SE-54; Carrier gas: He; Phase thickness: 0.52 um; Data type: Kovats RI; Authors: Guan, Y.; Kiraly, J.; Rijks, J.A., Interactive retention index database for compound identification in temperature-programmed capillary gas chromatography, J.
A structural isomer, or constitutional isomer, is a type of isomer in which molecules with the same molecular formula have different bonding patterns and atomic organization, as opposed to stereoisomers, in which molecular bonds are always in the same order and only spatial arrangement differs. Sci., 14, 2001, 131-136. ass: Standard polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 5 K/min; Start T: 40 C; End T: 200 C; End time: 2 min; Start time: 5 min; CAS no: 111706; Active phase: Innowax; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Pena, R.M. Graham Edgar, George Calingaert, and R. E. Marker (1929): "The preparation and properties of the isomeric heptanes. Often a substituent moves from one atom to another atom in the same molecule. Food Chem., 49, 2001, 5929-5933. class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: 50C(2min)=>10C/min=>110C=>5.7C/min=>200C=>40C/min=>250C(5min); CAS no: 111706; Active phase: BPX-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Sides, A.; Robards, K.; Helliwell, S.; An, M., Changes in the volatile profile of oats induced by processing, J. Agric. ; Nisyrios, I.; Mottram, D.S., Analysis of the headspace aroma compounds of walnuts (Juglans regia L.), Flavour Fragr.
In the grease spot test, heptane is used to dissolve an oil spot to show the previous presence of organic compounds on a stained paper. Food Chem., 54, 2006, 8848-8854. ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 50 C; End T: 250 C; CAS no: 111706; Active phase: DB-1; Data type: Normal alkane RI; Authors: Habu, T.; Flath, R.A.; Mon, T.R. Technol., 227, 2008, 1259-1273. ass: Standard polar; Column diameter: 0.3 mm; Column length: 25 m; Column type: Capillary; Heat rate: 5 K/min; Start T: 60 C; End T: 190 C; End time: 20 min; Start time: 2 min; CAS no: 111706; Active phase: Carbowax 20M; Carrier gas: He; Data type: Normal alkane RI; Authors: Xue, C.; Ye, M.; Li, Z.; Cai, Y.; Tan, L.; Lin, H.; Sakaguchi, M., Changes in the volatile compounds of Yellowtail (Seriola aureovitata) during refrigerated storage, Asian Fisheries Sciences, 13, 2000, 263-270. class: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Description: 60 0C (10 min) ^ 4 K/min -> 220 0C (10 min) ^ 1 K/min -> 240 0C; CAS no: 111706; Active phase: Innowax; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Baser, K.H.C.
It is called Fp2 or "fip dimer." (Nat.
Food Chem., 53, 2005, 7931-7938. ass: Standard polar; Column diameter: 0.25 mm; Column length: 50 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 40 C; End T: 190 C; End time: 30 min; Start time: 2 min; CAS no: 111706; Active phase: Carbowax 20M; Carrier gas: Helium; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: de la Fuente, E.; Martinez-Castro, I.; Sanz, J., Characterization of Spanish unifloral honeys by solid phase microextraction and gas chromatography-mass spectrometry, J. Sep. Food Chem., 55, 2007, 1418-1426. ass: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 40 C; End T: 175 C; End time: 20 min; Start time: 5 min; CAS no: 111706; Active phase: Supelcowax-10; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Vejaphan, W.; Hsieh, T.C.Y.
1-Heptanol has a pleasant smell and is used in cosmetics for its fragrance. Chem., 20(5), 2008, 3641-3648. ass: Standard polar; Column diameter: 0.2 mm; Column length: 25 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 60 C; End T: 190 C; End time: 30 min; CAS no: 111706; Active phase: SP-1000; Carrier gas: N2; Phase thickness: 0.43 um; Data type: Normal alkane RI; Authors: De Llano D.G. Food Chem., 46(3), 1998, 1094-1100. ass: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 50 C; End T: 230 C; CAS no: 111706; Active phase: DB-Wax; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Shimoda, M.; Shigematsu, H.; Shiratsuchi, H.; Osajima, Y., Comparison of volatile compounds among different grades of green tea and their relations to odor attributes, J. Agric. In organic chemistry, the cycloalkanes are the monocyclic saturated hydrocarbons. Alkanes have the general chemical formula CnH2n+2. InChI=1S/C7H16O/c1-2-3-4-5-6-7-8/h8H,2-7H2,1H3
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