Benzene, 1-ethyl-2-methyl-
- Formula: C9H12
- Molecular weight: 120.1916
- IUPAC Standard InChIKey: HYFLWBNQFMXCPA-UHFFFAOYSA-N
- CAS Registry Number: 611-14-3
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: Toluene, o-ethyl-; o-Ethylmethylbenzene; o-Ethyltoluene; o-Methylethylbenzene; 1-Ethyl-2-methylbenzene; 1-Methyl-2-ethylbenzene; 2-Ethyltoluene; ortho-Ethyltoluene; 1,2-Methylethylbenzene; 2-Ethylmethylbenzene; Toluene, 2-ethyl-; 2-Methyl-1-ethylbenzene; NSC 405731; 2-ethyl-3-methylbenzene
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Normal alkane RI, non-polar column, custom temperature program
Go To: Top, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Column type | Capillary | Capillary | Capillary | Capillary | Capillary |
---|---|---|---|---|---|
Active phase | HP-5 MS | Polydimethyl siloxane with 5 % Ph groups | Polydimethyl siloxane with 5 % Ph groups | DB-5 MS | Methyl Silicone |
Column length (m) | 30. | 30. | 60. | ||
Carrier gas | Helium | Helium | Helium | ||
Substrate | |||||
Column diameter (mm) | 0.25 | 0.25 | 0.32 | ||
Phase thickness (μm) | 0.25 | 0.25 | 1.0 | ||
Program | not specified | not specified | not specified | 45 0C (0.75 min) 10 0C/min -> 200 0C 30 0C/min -> 245 0C (1.25 min) | -50 0C (2 min) 8 0C/min -> 200 0C (7.75 min) 25 0C -> 225 0C (8 min) |
I | 976. | 983. | 988. | 972. | 977. |
Reference | Kotowska, Zalikowski, et al., 2012 | Robinson, Adams, et al., 2012 | Robinson, Adams, et al., 2012 | Cajka, Hajslova, et al., 2007 | Blunden, Aneja, et al., 2005 |
Comment | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI |
Column type | Capillary | Capillary | Capillary | Capillary | Capillary |
---|---|---|---|---|---|
Active phase | HP-5MS | Polymethylsiloxane, (PMS-20000) | Methyl phenyl siloxane (not specified) | BPX-5 | Methyl Silicone |
Column length (m) | 30. | 50. | |||
Carrier gas | Helium | ||||
Substrate | |||||
Column diameter (mm) | 0.25 | 0.32 | |||
Phase thickness (μm) | 0.25 | 0.50 | |||
Program | 40C(3min) => 4C/min => 75C => 8C/min => 250C | not specified | not specified | 40 0C (5 min) 20 0C/min -> 60 0C (5 min) 4 0C/min -> 250 0C (10 min) | not specified |
I | 975. | 965. | 975. | 979. | 970. |
Reference | Vichi, Pizzale, et al., 2005 | Cornwell and Cordano, 2003 | Poligne, Collignan, et al., 2002 | Madruga, Arruda, et al., 2000 | Spieksma, 1999 |
Comment | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI |
Column type | Capillary | Capillary | Capillary | Capillary | Capillary |
---|---|---|---|---|---|
Active phase | SE-30 | SE-30 | DB-1 | OV-101 | DB-1 |
Column length (m) | 60. | 60. | |||
Carrier gas | |||||
Substrate | |||||
Column diameter (mm) | 0.32 | 0.32 | |||
Phase thickness (μm) | 0.25 | 0.25 | |||
Program | not specified | not specified | not specified | not specified | 3 min at 5 C; 5 - 50 C at 3 deg/min; 50 - 220 C at 5 deg/min |
I | 965. | 971. | 963. | 973. | 963. |
Reference | Xiuhua, Zhang, et al., 1996 | Xiuhua, Zhang, et al., 1996 | Ciccioli, Cecinato, et al., 1994 | Dimov, Osman, et al., 1994 | Ciccioli, Brancaleoni, et al., 1993 |
Comment | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI |
Column type | Capillary | Capillary | Capillary | Capillary | Capillary |
---|---|---|---|---|---|
Active phase | Squalane | DB-1 | DB-1 | SE-52 | OV-1, SE-30, Methyl silicone, SP-2100, OV-101, DB-1, etc. |
Column length (m) | 30. | 30. | 100. | 50. | |
Carrier gas | H2 | H2 | Hydrogen | ||
Substrate | |||||
Column diameter (mm) | 0.25 | 0.25 | 0.50 | 0.32 | |
Phase thickness (μm) | 0.25 | 0.25 | |||
Program | not specified | 30C (2min) => 2C/min => 150C => 4C/min => 250C | 30C (2min) => 2C/min => 150C => 4C/min => 250C | not specified | not specified |
I | 965.3 | 955. | 961. | 988. | 961. |
Reference | Dimov and Mekenyan, 1989 | Takeoka, Flath, et al., 1988 | Takeoka, Flath, et al., 1988 | van Langenhove and Schamp, 1986 | Waggott and Davies, 1984 |
Comment | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI |
Column type | Capillary |
---|---|
Active phase | OV-1, SE-30, Methyl silicone, SP-2100, OV-101, DB-1, etc. |
Column length (m) | 50. |
Carrier gas | Hydrogen |
Substrate | |
Column diameter (mm) | 0.32 |
Phase thickness (μm) | |
Program | not specified |
I | 965. |
Reference | Waggott and Davies, 1984 |
Comment | MSDC-RI |
References
Go To: Top, Normal alkane RI, non-polar column, custom temperature program, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Kotowska, Zalikowski, et al., 2012
Kotowska, U.; Zalikowski, M.; Isidorov, V.A.,
HS-SPME/GC-MS analysis of volatile and semi-volatile organic compounds emitted from municipal sewage sludge,
Environ. Monit. Asses., 2012, 184, 5, 2893-2907, https://doi.org/10.1007/s10661-011-2158-8
. [all data]
Robinson, Adams, et al., 2012
Robinson, A.L.; Adams, D.O.; Boss, P.K.; Heymann, H.; Solomon, P.S.; Trengove, R.D.,
Influence of geographic origine on the sensory characteristics and wine composition of Vitus viniferas cv. Cabernet Sauvignon wines from Australia (Supplemental data),
Am. J. Enol. Vitic., 2012, 64, 4, 467-476, https://doi.org/10.5344/ajev.2012.12023
. [all data]
Cajka, Hajslova, et al., 2007
Cajka, T.; Hajslova, J.; Cochran, J.; Holadova, K.; Klimankova, E.,
Solid phase microextraction - comprehensive two dimensional gas chromatography - time-of-flight mass spectrometry for the analysis of honey volatiles,
J. Sep. Sci., 2007, 30, 4, 534-546, https://doi.org/10.1002/jssc.200600413
. [all data]
Blunden, Aneja, et al., 2005
Blunden, J.; Aneja, V.P.; Lonneman, W.A.,
Characterization of non-methane volatile organic compounds at swine facilities in eastern North Carolina,
Atm. Environ., 2005, 39, 36, 6707-6718, https://doi.org/10.1016/j.atmosenv.2005.03.053
. [all data]
Vichi, Pizzale, et al., 2005
Vichi, S.; Pizzale, L.; Conte, L.S.; Buxaderas, S.; L´opez-Tamames, E.,
Simultaneous determination of volatile and semi-volatile aromatic hydrocarbons in virgin olive oil by headspace solid-phase microextraction coupled to gas chromatography/mass spectrometry,
J. Chromatogr. A, 2005, 1090, 1-2, 146-154, https://doi.org/10.1016/j.chroma.2005.07.007
. [all data]
Cornwell and Cordano, 2003
Cornwell, E.; Cordano, G.,
Nueva proposicion para predecir datos de retencion obtenidos mediante cromatografia de gases de hidrocarburos derivados de las naftas,
Revista de la Sociedad Quimica de Mexico, 2003, 47, 1, 38-43. [all data]
Poligne, Collignan, et al., 2002
Poligne, I.; Collignan, A.; Trystram, G.,
Effects of salting, drying, cooking, and smoking operations on volatile compound formation and collor patterns in pork,
Food Eng. Physical Properties, 2002, 67, 8, 2976-2986. [all data]
Madruga, Arruda, et al., 2000
Madruga, M.S.; Arruda, S.G.B.; Narain, N.; Souza, J.G.,
Castration and slaughter age effects on panel assessment and aroma compounds of the mestico goat meat,
Meat Sci., 2000, 56, 2, 117-125, https://doi.org/10.1016/S0309-1740(00)00025-5
. [all data]
Spieksma, 1999
Spieksma, W.,
Determination of vapor liquid equilibrium from the Kovats retention index on dimethylsilicone using the Wilson mixing tool,
J. Hi. Res. Chromatogr., 1999, 22, 10, 565-588, https://doi.org/10.1002/(SICI)1521-4168(19991001)22:10<565::AID-JHRC565>3.0.CO;2-2
. [all data]
Xiuhua, Zhang, et al., 1996
Xiuhua, Zh.; Zhang, L.; Che, X.,
Prediction of the Kovats retention indexes of polysubstituted alkylbenzenes,
Chin. J. Chromatogr., 1996, 14, 4, 244-248. [all data]
Ciccioli, Cecinato, et al., 1994
Ciccioli, P.; Cecinato, A.; Brancaleoni, E.; Brachetti, A.; Frattoni, M.; Sparapani, R.,
Composition and Distribution of Polar and Non-Polar VOCs in Urban, Rural, Forest and Remote Areas,
Eur Commission EUR, 1994, 549-568. [all data]
Dimov, Osman, et al., 1994
Dimov, N.; Osman, A.; Mekenyan, Ov.; Papazova, D.,
Selection of moelcular descriptors used in quantitative structure-gas chromatographic retention relationships. I. Application to alkylbenzenes and naphthalenes,
Anal. Chim. Acta., 1994, 298, 3, 303-317, https://doi.org/10.1016/0003-2670(94)00280-0
. [all data]
Ciccioli, Brancaleoni, et al., 1993
Ciccioli, P.; Brancaleoni, E.; Cecinato, A.; Sparapani, R.; Frattoni, M.,
Identification and determination of biogenic and anthropogenic volatile organic compounds in forest areas of Northern and Southern Europe and a remote site of the Himalaya region by high-resolution gas chromatography-mass spectrometry,
J. Chromatogr., 1993, 643, 1-2, 55-69, https://doi.org/10.1016/0021-9673(93)80541-F
. [all data]
Dimov and Mekenyan, 1989
Dimov, N.; Mekenyan, Ov.,
Quantitative Relationships Between the Structure of Alkylbenzenes and Their Gas Chromatographic Retention on Stationary Phasses with Different Polarity,
J. Chromatogr., 1989, 471, 227-236, https://doi.org/10.1016/S0021-9673(00)94170-0
. [all data]
Takeoka, Flath, et al., 1988
Takeoka, G.R.; Flath, R.A.; Güntert, M.; Jennings, W.,
Nectarine volatiles: vacuum steam distillation versus headspace sampling,
J. Agric. Food Chem., 1988, 36, 3, 553-560, https://doi.org/10.1021/jf00081a037
. [all data]
van Langenhove and Schamp, 1986
van Langenhove, H.; Schamp, N.,
Identification of Volatiles in the Head Space of Acid-Treated Phosphate Rock by Gas Chromatography-Mass Spectromety,
J. Chromatogr., 1986, 351, 65-75, https://doi.org/10.1016/S0021-9673(01)83473-7
. [all data]
Waggott and Davies, 1984
Waggott, A.; Davies, I.W.,
Identification of organic pollutants using linear temperature programmed retention indices (LTPRIs) - Part II, 1984, retrieved from http://dwi.defra.gov.uk/research/completed-research/reports/dwi0383.pdf. [all data]
Notes
Go To: Top, Normal alkane RI, non-polar column, custom temperature program, References
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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