Environ., 39, 2005, 6707-6718. umn class: Standard non-polar; Column type: Capillary; Start T: 105 C; CAS no: 78933; Active phase: Polydimethyl siloxane; Data type: Normal alkane RI; Authors: Tello, A.M.; Lebron-Aguilar, R.; Quintanilla-Lopez, J.E. ; Syomina, L.A.; Samusenko, A.L., Temperature changes of sorption parameters of di-n-alkylketones and methylcyclohexanones in capillary gas chromatography, Russ. : 78-84-2 Formula: C4h8o EINECS: 201-149-6 Type: Isobutyraldehyde Appearance: Liquid Quality: Industrial [ 1] The mechanism of pyrolysis of butyraldehyde in the gas-phase has been described. ; Sanderson, A.; Walradt, J.P., Volatile components of roasted filberts, J. Agric. Chem., 69, 2004, 179-187. class: Standard polar; Column diameter: 0.25 mm; Column length: 50 m; Column type: Capillary; Description: 40C=> 10C/min =>60C=> 3C/min =>200C (15min); CAS no: 78933; Active phase: Carbowax 20M; Carrier gas: He; Phase thickness: 0.2 um; Data type: Normal alkane RI; Authors: Diaz, P.; Ibanez, E.; Senorans, F.J.; Reglero, G., Truffle aroma characterization by headspace solid-phase microextraction, J. Chromatogr. Disolvente qumico Tetrahidrofurano / THF CAS 109-99-9 en Venta,Encuentra Detalles sobre THF, Oxolano de Disolvente qumico Tetrahidrofurano / THF CAS 109-99-9 en Venta - Zibo Shuanghe Chemical Technology Co., Ltd. There is a chlorine (Cl) atom on the seventh carbon atom; numbering from the carbonyl group and counting the carbonyl carbon atom as C1, we place the Cl atom on the seventh carbon atom. Technol., 222, 2006, 176-184. ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 0 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 40 C; End T: 280 C; End time: 5 min; Start time: 2 min; CAS no: 78933; Active phase: CP-Sil 8CB-MS; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Elmore, J.S. Food Chem., 20(5), 1972, 1021-1028. ass: Semi-standard non-polar; Column type: Capillary; CAS no: 78933; Active phase: Squalane; Data type: Normal alkane RI; Authors: Chen, H.-F., Quantitative prediction of gas chromatography retention indices with support vector machines, radial basis neutral networks and multiple linear regression, Anal. The molecular formula C4H8O may refer to: Butanone Butyraldehyde Crotyl alcohol Cyclobutanol 1,2-Epoxybutane 2,3-Epoxybutane Ethyl vinyl ether Isobutyraldehyde 2-Methoxypropene Tetrahydrofuran This set index page lists chemical structure articles associated with the same molecular formula. A structural formula shows all the carbon and hydrogen atoms and the bonds attaching them. ; Wills, M.T., Speciation of the volatile organic compounds (VOCs) in solventborne aerosol coatings by solid phase microextraction-gas chromatography, J. Earth, 24(6), 1999, 729-732. ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 40 C; End T: 200 C; End time: 5 min; CAS no: 78933; Active phase: SPB-1; Phase thickness: 4 um; Data type: Normal alkane RI; Authors: de Lacy Costello, B.P.J. Dairy Sci., 90, 2007, 556-569. ass: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 35 C; End T: 200 C; Start time: 10 min; CAS no: 78933; Active phase: Supelcowax-10; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Girard, B.; Durance, T., Headspace volatiles of sockeye and pink salmon as affected by retort process, Food Chem. ; Whitfield, F.B., Volatile aroma components of soy protein isolate and acid-hydrolysed vegetable protein, Food Chem., 90, 2005, 861-873. ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 40 C; End T: 280 C; Start time: 2 min; CAS no: 78933; Active phase: CP Sil 8 CB; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Elmore, J.S. ; Grossmann, I.; Geary, M.; Delahunty, C.M., Interactions between artificial saliva and 20 aroma compounds in water and oil model systems, J. Agric. 2), 2003. umn class: Standard non-polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Start T: 398 K; CAS no: 78933; Active phase: DB-1; Carrier gas: He; Phase thickness: 1 um; Data type: Kovats RI; Authors: Ciazynska-Halarewicz, K.; Borucka, H.E. Chem. IUPAC Standard InChI: InChI=1S/C4H8O/c1-3-4 (2)5/h3H2,1-2H3. A compound has the molecular formula C4H8O and contains a carbonyl group. J. C3H7 is a propyl group. ; Dutoit, J.-Cl. Org. . ; Leguijt, T.; Nijhuis, H.H., Aroma profile development of intermediate chocolate products. Include all bonds to hydrogens. Food Chem., 52, 2004, 7637-7643. class: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 60 m; Column type: Capillary; Description: 40C(4min) =>2C/min => 90C => 4C/min => 130C =>8C/min => 250C; CAS no: 78933; Active phase: BPX-5; Carrier gas: He; Phase thickness: 1 um; Data type: Normal alkane RI; Authors: van Ruth, S.M. Ethyl Methyl Ketone is used as a solvent, in the manufacture of synthetic rubber and paraffin wax, as well as in different chemical products. CAS No. Appl. ; Floris, V.; Fayoux, S., Characterisation of the volatile profiles of infant formulas by proton transfer reaction-mass spectrometry and gas chromatography-mass spectrometry, Food Chem., 98, 2006, 343-350. ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 7 K/min; Start T: 40 C; End T: 250 C; End time: 5 min; Start time: 10 min; CAS no: 78933; Active phase: 5 % Phenyl methyl siloxane; Carrier gas: He; Phase thickness: 1 um; Data type: Normal alkane RI; Authors: Ramirez R.; Cava R., Volatile profiles of dry-cured meat products from three different Iberian x Duroc genotypes, J. Agric. Chromatogr., 845, 1999, 21-31. umn class: Standard polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Start T: 90 C; CAS no: 78933; Active phase: HP-Innowax; Phase thickness: 0.5 um; Data type: Kovats RI; Authors: Heberger, K.; Gorgenyi, M., Principal component analysis of Kovats indices for carbonyl compounds in capillary gas chromatography, J. ; Habu, T.; Flath, R.A.; Mon, T.R. Chim. Statistical and thermodynamic verification of a 'kinetic' model, Acta Chromatogr., 12, 2002, 65-79. umn class: Standard non-polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Start T: 50 C; CAS no: 78933; Active phase: HP-1; Phase thickness: 1.05 um; Data type: Kovats RI; Authors: Heberger, K.; Gorgenyi, M.; Kowalska, T., Temperature dependence of Kovats indices in gas chromatography revisited, J. Chromatogr. CAS Registry Number: 78-93-3. Structure-retention index relationship on polar columns, J. Statistical and thermodynamic verification of a 'kinetic' model, Acta Chromatogr., 12, 2002, 65-79. umn class: Standard polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Start T: 373 K; CAS no: 78933; Active phase: DB-Wax; Carrier gas: He; Phase thickness: 1 um; Data type: Kovats RI; Authors: Ciazynska-Halarewicz, K.; Borucka, H.E. ; Hierro, E.M.; de la Hoz, L.; Mottram, D.S. Gerichtl. CAS:25067-34-9Poly(vinyl Alcohol-co-ethylene) Molecular Formula: C4H8O Molecular Weight: 72.10572 Purity: 98% Package:0.1g 0.25g 1g 5g 10g 25g The most likely structure for the compound is: ClCH2CH2CH2Cl ; Flanagan, R.J., Detection and Identification of Volatile Organic Compounds in Blood by Headspace Gas Chromatography as an Aid to the Diagnosis of Solvent Abuse, J. VI. Chem. (Engl. ; Kowalska, T., Temperature dependence of Kovats indices in gas chromatography. Chim. Dairy J., 11, 2001, 911-926. ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Heat rate: 10 K/min; Start T: 35 C; End T: 270 C; Start time: 1 min; CAS no: 78933; Active phase: DB-1; Carrier gas: He; Phase thickness: 5 um; Data type: Linear RI; Authors: Bartelt, R.J., Calibration of a commercial solid-phase microextraction device for measuring headspace concentrations of organic volatiles, Anal. ; Ding, S.F. ; Hua, R.L. Protect from moisture. Food Chem., 32, 1984, 92-94. umn class: Standard non-polar; Column type: Capillary; Start T: 120 C; CAS no: 78933; Active phase: Methyl Silicone; Data type: Normal alkane RI; Authors: Lebron-Aguilar, R.; Quintanilla-Lopez, J.E. 3 Are there any organic compounds with three or more oxygen atoms bonded together in a straight chain? Chromatogr., 643, 1993, 55-69. ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 0 C; End T: 250 C; CAS no: 78933; Active phase: DB-1; Data type: Normal alkane RI; Authors: Habu, T.; Flath, R.A.; Mon, T.R. Chromatogr., 609, 1992, 229-259. umn class: Semi-standard non-polar; Column diameter: 0.28 mm; Column length: 15 m; Column type: Capillary; Start T: 110 C; CAS no: 78933; Active phase: SE-54; Carrier gas: Ar; Phase thickness: 2.5 um; Data type: Kovats RI; Authors: Grigor'eva, D.N. Ecol., 23(12), 1997, 2897-2915. ass: Standard non-polar; Column type: Capillary; CAS no: 78933; Active phase: HP-1; Data type: Normal alkane RI; Authors: Junkes, B.S. In chemical formula you may use: Any chemical element. Nova, 30(8), 2007, 2031-2034. class: Standard polar; Column diameter: 0.32 mm; Column length: 60 m; Column type: Capillary; Description: 40 0C (5 min) ^ 4 0C/min -> 60 0C (5 min) ^ 8 0C/min -> 250 0C (3 min); CAS no: 78933; Active phase: HP-Innowax; Carrier gas: Helium; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Viegas, M.C. Food Chem., 55, 2007, 1923-1931. ass: Semi-standard non-polar; Column diameter: 0.31 mm; Column length: 25 m; Column type: Capillary; CAS no: 78933; Active phase: SE-54; Data type: Normal alkane RI; Authors: Ding, Q.; Deng, Y.; Sun, Y.; Huagn, A.; Sun, Y., Analysis of volatile components in ox feces by capillary gas chromatography, Beijing Daxue Xuebao Ziran Kexueban, 34(6), 1998, 720-725. ass: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 60 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 40 C; End T: 200 C; Start time: 5 min; CAS no: 78933; Active phase: DB-5; Carrier gas: He; Phase thickness: 1 um; Data type: Normal alkane RI; Authors: Joffraud, J.J.; Leroi, F.; Roy, C.; Berdague, J.L., Characterisation of volatile compounds produced by bacteria isolated from the spoilage flora of cold-smoked salmon, Int. Chromatogr., 845, 1999, 21-31. umn class: Standard non-polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Start T: 90 C; CAS no: 78933; Active phase: HP-1; Carrier gas: N2; Phase thickness: 1.05 um; Data type: Kovats RI; Authors: Heberger, K.; Gorgenyi, M., Principal component analysis of Kovats indices for carbonyl compounds in capillary gas chromatography, J. Introductory Chemistry For Today 8th Edition ISBN: 9781285644561 Author: Seager Publisher: Cengage What is the structure of the compound in the following 1H-NMR spectrum with the molecular formula C4H8O? ; Amboni, R.D.M.C. ), 32(5), 1996, 656-666, In original 656-666. ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 35 C; End T: 220 C; CAS no: 78933; Active phase: DB-1; Phase thickness: 1.0 um; Data type: Normal alkane RI; Authors: Pihlsgared, P.; Leufven, A.; Lingnert, H., Aroma compounds in the production of liquid beet sugar, J. Agric. J. Phys. A dialkyl ketone that is a four-carbon ketone carrying a single keto- group at position C-2. ; Ramsey, J.D., Volatile Substance Abuse, UNODC Technical Series, No 5, United Nations, Office on Drugs and Crime, Vienna International Centre, PO Box 500, A-1400 Vienna, Austria, 1997, 56. ass: Standard non-polar; Column diameter: 0.31 mm; Column length: 50 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 0 C; End T: 225 C; Start time: 1 min; CAS no: 78933; Active phase: OV-101; Carrier gas: He; Data type: Normal alkane RI; Authors: del Rosario, R.; de Lumen, B.O. Chemical element has the molecular formula C4H8O and contains a carbonyl group dependence of Kovats indices in gas.. Keto- group at position C-2, L. ; Mottram, D.S chemical element sorption c4h8o structural formula of di-n-alkylketones and in. ( 2 ) 5/h3H2,1-2H3 Standard InChI: InChI=1S/C4H8O/c1-3-4 ( 2 ) 5/h3H2,1-2H3 A. ; Walradt, J.P., Volatile of., J.P., Volatile components of roasted filberts, J. 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