Benzoic acid, 4-methoxy-
- Formula: C8H8O3
- Molecular weight: 152.1473
- IUPAC Standard InChIKey: ZEYHEAKUIGZSGI-UHFFFAOYSA-N
- CAS Registry Number: 100-09-4
- 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: p-Anisic acid; p-Methoxybenzoic acid; Draconic acid; 4-Anisic acid; 4-Methoxybenzoic acid; Anisic acid, para; Kyselina 4-methoxybenzoova
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Gas phase thermochemistry data
Go To: Top, UV/Visible spectrum, Gas Chromatography, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -108.0 ± 0.33 | kcal/mol | Ccb | Colomina, Jimenez, et al., 1978 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°gas | 98.7 | cal/mol*K | N/A | Alcolea P.M., 1994 | This value was calculated by semiempirical AM1 method for anti conformer. The same authors have calculated the value of S(298.15 K)=395 J/mol*K by ab initio 4-21G* basis set method. The value of 436 J/mol*K was estimated for equilibrium mixture of conformers by difference method [ Dorofeeva O.V., 1997].; GT |
UV/Visible spectrum
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Spectrum
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Additional Data
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Source | Lang (editor), 1969 |
---|---|
Owner | INEP CP RAS, NIST OSRD Collection (C) 2007 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
Origin | INSTITUTE OF ENERGY PROBLEMS OF CHEMICAL PHYSICS, RAS |
Source reference | RAS UV No. 19058 |
Instrument | Unicam SP 700 |
Melting point | 275-280 |
Gas Chromatography
Go To: Top, Gas phase thermochemistry data, UV/Visible spectrum, 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
Van Den Dool and Kratz RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | VF-5MS | 1441. | Todua, 2011 | 30. m/0.25 mm/0.25 μm, He; Tstart: 60. C; Tend: 270. C |
Normal alkane RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | HP-5 MS | 1451. | Jerkovic, Tuberso, et al., 2010 | 30. m/0.25 mm/0.25 μm, Helium, 70. C @ 2. min, 3. K/min, 200. C @ 18. min |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | HP-5MS | 1453. | Alissandrakis, Kibaris, et al., 2005 | 30. m/0.25 mm/0.25 μm, He; Program: 40C(3min) => 2C/min => 180C => 10C/min => 250C(5min) |
Capillary | CP Sil 5 CB | 1396. | Guyot, Scheirman, et al., 1999 | He; Column length: 50. m; Column diameter: 0.32 mm; Program: 30C => 55C/min => 85C => 1C/min => 145C => 3C/min => 250C |
References
Go To: Top, Gas phase thermochemistry data, UV/Visible spectrum, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Colomina, Jimenez, et al., 1978
Colomina, M.; Jimenez, P.; Roux, M.V.; Turrion, C.,
Thermochemical properties of benzoic acid derivatives VII. Enthalpies of combustion and formation of the o-, m-, and p-methoxy-benzoic acids,
J. Chem. Thermodyn., 1978, 10, 661-665. [all data]
Alcolea P.M., 1994
Alcolea P.M.,
Spectroscopy of p-methoxybenzoic acid: an AM1 and ab initio study,
Appl. Spectrosc., 1994, 48, 27-36. [all data]
Dorofeeva O.V., 1997
Dorofeeva O.V.,
Unpublished results. Thermocenter of Russian Academy of Science, Moscow, 1997. [all data]
Lang (editor), 1969
Lang (editor), L.,
Absorption Spectra in the Ultraviolet and Visible Region, 1969, 12, 37. [all data]
Todua, 2011
Todua, N.G.,
Retention Data. NIST Mass Spectrometry Data Center., NIST Mass Spectrometry Data Center, 2011. [all data]
Jerkovic, Tuberso, et al., 2010
Jerkovic, I.; Tuberso, C.I.G.; Gugic, M.; Bubalo, D.,
Composition of Sulla (Hedysarum coronarium L.) honey solvent extractives determined by GC/MS: norisoprenoids and other volatile organic compounds,
Molecules, 2010, 15, 9, 6375-6385, https://doi.org/10.3390/molecules15096375
. [all data]
Alissandrakis, Kibaris, et al., 2005
Alissandrakis, E.; Kibaris, A.C.; Tarantilis, P.A.; Harizanis, P.C.; Polissiou, M.,
Flavour compounds of Greek cotton honey,
J. Sci. Food Agric., 2005, 85, 9, 1444-1452, https://doi.org/10.1002/jsfa.2124
. [all data]
Guyot, Scheirman, et al., 1999
Guyot, C.; Scheirman, V.; Collin, S.,
Floral origin markers of heather honeys: Calluna vulgaris and Erica arborea,
Food Chem., 1999, 64, 1, 3-11, https://doi.org/10.1016/S0308-8146(98)00122-8
. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, UV/Visible spectrum, Gas Chromatography, References
- Symbols used in this document:
S°gas Entropy of gas at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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