1,3,7,9-Tetramethyluric acid
- Formula: C9H12N4O3
- Molecular weight: 224.2166
- IUPAC Standard InChI: InChI=1S/C9H12N4O3/c1-10-5-6(11(2)8(10)15)12(3)9(16)13(4)7(5)14/h1-4H3
- IUPAC Standard InChIKey: QGDOQULISIQFHQ-UHFFFAOYSA-N
- CAS Registry Number: 2309-49-1
- 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: Tetramethyl uric acid; 1H-Purine-2,6,8(3H)-trione, 7,9-dihydro-1,3,7,9-tetramethyl-; Ba 2750; Temorine; Temurin; Uric acid, 1,3,7,9-tetramethyl-; Uric acid, methylated, # 1
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Gas phase ion energetics data
Go To: Top, 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 by: Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Ionization energy determinations
| IE (eV) | Method | Reference |
|---|---|---|
| 7.91 | CTS | Slifkin and Allison, 1967 |
| 7.9 ± 0.1 | EI | Lifschitz, Bergmann, et al., 1967 |
Gas Chromatography
Go To: Top, Gas phase ion energetics data, 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
Normal alkane RI, non-polar column, temperature ramp
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | OV-101 | 2183. | Pinkston, Spiteller, et al., 1981 | H2, 80. C @ 7. min, 2. K/min; Column length: 30. m; Column diameter: 0.3 mm; Tend: 275. C |
| Capillary | OV-101 | 2183. | Spiteller and Spiteller, 1979 | He, 75. C @ 7. min, 2. K/min; Column length: 25. m; Tend: 280. C |
References
Go To: Top, Gas phase ion energetics data, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Slifkin and Allison, 1967
Slifkin, M.A.; Allison, A.C.,
Measurement of ionization potentials from contact charge transfer spectra,
Nature, 1967, 215, 949. [all data]
Lifschitz, Bergmann, et al., 1967
Lifschitz, C.; Bergmann, E.D.; Pullman, B.,
The ionization potentials of biological purines and pyrimidines,
Tetrahedron Lett., 1967, 4583. [all data]
Pinkston, Spiteller, et al., 1981
Pinkston, D.; Spiteller, G.; von Henning, H.; Matthaei, D.,
High-resolution gas chromatography-mass spectrometry of the methyl esters of organic acids from uremic hemofiltrates,
J. Chromatogr., 1981, 223, 1, 1-19, https://doi.org/10.1016/S0378-4347(00)80063-8
. [all data]
Spiteller and Spiteller, 1979
Spiteller, M.; Spiteller, G.,
Trennung und charakterisierung saurer harnbest and- teile,
J. Chromatogr., 1979, 164, 3, 253-317, https://doi.org/10.1016/S0378-4347(00)81232-3
. [all data]
Notes
Go To: Top, Gas phase ion energetics data, Gas Chromatography, References
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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