Benzeneacetic acid, 4-hydroxy-
- Formula: C8H8O3
- Molecular weight: 152.1473
- IUPAC Standard InChIKey: XQXPVVBIMDBYFF-UHFFFAOYSA-N
- CAS Registry Number: 156-38-7
- 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: Acetic acid, (p-hydroxyphenyl)-; (p-Hydroxyphenyl)acetic acid; (4-Hydroxyphenyl)acetic acid; Parahydroxy phenylacetic acid; 4-Hydroxybenzeneacetic acid; 2-(4-Hydroxyphenyl)acetic acid
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Phase change data
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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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tfus | 423.6 | K | N/A | Armstrong, James, et al., 1979 | Uncertainty assigned by TRC = 0.5 K; TRC |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
28.0 | 422.9 | Gracin and Rasmuson, 2002 | AC |
28.4 | 423.6 | Acree, 1991 | AC |
Gas phase ion energetics data
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Ionization energy determinations
IE (eV) | Method | Reference |
---|---|---|
8.12 ± 0.02 | EI | Benezra and Bursey, 1972 |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C6H5O2+ | 13.83 ± 0.02 | CH3CO | EI | Benezra and Bursey, 1972 | |
C6H6O2+ | 9.28 ± 0.02 | CH2=C=O | EI | Benezra and Bursey, 1972 |
Mass spectrum (electron ionization)
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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
Spectrum
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Additional Data
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Due to licensing restrictions, this spectrum cannot be downloaded.
Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | Japan AIST/NIMC Database- Spectrum MS-NW-2387 |
NIST MS number | 230012 |
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), 1967 |
---|---|
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. 20202 |
Instrument | Spektromom 201 |
Melting point | 148 |
Gas Chromatography
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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, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | HP-5MS | 1557.8 | Andriamaharavo, 2014 | 30. m/0.25 mm/0.25 μm, He; Program: 60C (1 min) => 5 C/min => 210C => 10 C/min => 280C (15 min) |
Normal alkane RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB5-30W | 1545. | Schwab and Schreier, 1988 | 30. m/0.25 mm/0.25 μm, He, 5. K/min; Tstart: 60. C; Tend: 300. C |
References
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Armstrong, James, et al., 1979
Armstrong, N.A.; James, K.C.; Wong, C.K.,
Inter-relationships between solubilities, distribution coefficients and melting points of some substituted benzoic and phenylacetic acids,
J. Pharm. Pharmacol., 1979, 31, 1, 627, https://doi.org/10.1111/j.2042-7158.1979.tb13606.x
. [all data]
Gracin and Rasmuson, 2002
Gracin, Sandra; Rasmuson, Åke C.,
Solubility of Phenylacetic Acid, p -Hydroxyphenylacetic Acid, p -Aminophenylacetic Acid, p -Hydroxybenzoic Acid, and Ibuprofen in Pure Solvents,
J. Chem. Eng. Data, 2002, 47, 6, 1379-1383, https://doi.org/10.1021/je0255170
. [all data]
Acree, 1991
Acree, William E.,
Thermodynamic properties of organic compounds: enthalpy of fusion and melting point temperature compilation,
Thermochimica Acta, 1991, 189, 1, 37-56, https://doi.org/10.1016/0040-6031(91)87098-H
. [all data]
Benezra and Bursey, 1972
Benezra, S.A.; Bursey, M.M.,
Hydrogen bonding in mass spectral activated complexes. A correction,
J. Chem. Soc. Perkin Trans. 2, 1972, 11, 1537. [all data]
Lang (editor), 1967
Lang (editor), L.,
Absorption Spectra in the Ultraviolet and Visible Region, 1967, 9, 25. [all data]
Andriamaharavo, 2014
Andriamaharavo, N.R.,
Retention Data. NIST Mass Spectrometry Data Center., NIST Mass Spectrometry Data Center, 2014. [all data]
Schwab and Schreier, 1988
Schwab, W.; Schreier, P.,
Simultaneous enzyme catalysis extraction: A versatile technique for the study of flavor precursors,
J. Agric. Food Chem., 1988, 36, 6, 1238-1242, https://doi.org/10.1021/jf00084a028
. [all data]
Notes
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- Symbols used in this document:
AE Appearance energy Tfus Fusion (melting) point ΔfusH Enthalpy of fusion - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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