Orotic Acid, 3TMS derivative

Formula: C₁₄H₂₈N₂O₄Si₃
Molecular weight: 372.6396
IUPAC Standard InChI: InChI=1S/C14H28N2O4Si3/c1-21(2,3)18-12-10-11(13(17)19-22(4,5)6)15-14(16-12)20-23(7,8)9/h10H,1-9H3
IUPAC Standard InChIKey: QOXWEKWDMOZSFV-UHFFFAOYSA-N
CAS Registry Number: 31111-36-1
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: 4-Pyrimidinecarboxylic acid, 2,6-bis(trimethylsiloxy)-, trimethylsilyl ester; Orotic acid (3TMS); Orotic acid, tri-TMS; Trimethylsilyl 2,6-bis[(trimethylsilyl)oxy]-4-pyrimidinecarboxylate; Pyrimidin-6-carboxylic acid, 2,4-dihydroxy, tris-TMS; Orotic acid, TMS; Pyrimidin-6-carboxylic acid, 2,4-dihydroxy, TMS
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Other data available:
- Mass spectrum (electron ionization)
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Gas Chromatography

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Kovats' RI, non-polar column, custom temperature program

Column type	Active phase	I	Reference	Comment
Packed	OV-1	1752.	Yamaji, Kimura, et al., 1978	Gas Chrom Q; Column length: 1. m; Program: not specified

Van Den Dool and Kratz RI, non-polar column, temperature ramp

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Column type	Active phase	I	Reference	Comment
Capillary	CP Sil 5 CB	1740.	Halket, Przyborowska, et al., 1999	25. m/0.15 mm/0.12 μm, 90. C @ 1. min, 10. K/min, 270. C @ 7. min
Capillary	DB-5	1758.	Kimura, Yamamoto, et al., 1999	30. m/0.25 mm/1. μm, He, 100. C @ 4. min, 4. K/min, 290. C @ 10. min
Capillary	DB-1	1747.	Hoffmann, Aramaki, et al., 1989	30. m/0.53 mm/1. μm, He, 4. K/min; T_start: 70. C; T_end: 290. C
Packed	OV-1	1749.	Tanaka, Hine, et al., 1980	N2, 100-120 mesh, 70. C @ 0.5 min, 28. K/min; Column length: 1.8 m; T_end: 290. C
Packed	OV-1	1764.	Butts, 1972	He, Chromosorb W HP (80-100 mesh), 10. K/min; Column length: 2. m; T_start: 100. C; T_end: 325. C

Van Den Dool and Kratz RI, non-polar column, custom temperature program

View large format table.

Column type	Active phase	I	Reference	Comment
Capillary	DB-1	1744.	Tsai, Oliphant, et al., 1985	He; Program: not specified
Packed	OV-101	1749.	Tanaka and Hine, 1982	Program: not specified
Packed	SE-30	1750.	Butts, 1970	He, Chromosorb W; Column length: 2. m; Program: not specified

Normal alkane RI, non-polar column, temperature ramp

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Column type	Active phase	I	Reference	Comment
Capillary	HP-5MS	1766.	Lee, Yanamandra, et al., 2002	30. m/0.25 mm/0.25 μm, He, 70. C @ 3. min, 4. K/min, 280. C @ 3. min

References

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Yamaji, Kimura, et al., 1978
Yamaji, A.; Kimura, S.; Kawasaki, H.; Yuki, H., Gas chromatographic analysis of pyrimidine and purine bases by retention indices, Yakugaku Zasshi, 1978, 98, 1, 1536-1541. [all data]

Halket, Przyborowska, et al., 1999
Halket, J.N.; Przyborowska, A.; Stein, S.E.; Mallard, W.G.; Down, S.; Chalmers, R., Deconvolution gas chromatography / mass spectrometry of urinary organic acids - potential for pattern recognition and automated identification of metabolic disorders, Rapid Commun. Mass spectrom., 1999, 13, 4, 279-284, https://doi.org/10.1002/(SICI)1097-0231(19990228)13:4<279::AID-RCM478>3.0.CO;2-I . [all data]

Kimura, Yamamoto, et al., 1999
Kimura, M.; Yamamoto, T.; Yamaguchi, S., Automated metabolic profiling and interpretation of GC/MS data for organic acidemia screening: a personal computer-based system, Tohoku J. Exp. Med., 1999, 188, 4, 317-334, https://doi.org/10.1620/tjem.188.317 . [all data]

Hoffmann, Aramaki, et al., 1989
Hoffmann, G.; Aramaki, S.; Blum-Hoffmann, E.; Nyhan, W.L.; Sweetman, L., Quantitative analysis for organic acids in biological samples: batch isolation followed by gas chromatographic-mass spectrometric analysis, Clin. Chem., 1989, 35, 4, 587-595. [all data]

Tanaka, Hine, et al., 1980
Tanaka, K.; Hine, D.G.; West-Dull, A.; Lynn, T.B., Gas-chromatographic method of analysis for urinary organic acids. I. Retention indices of 155 metabolically important compounds, Clin. Chem., 1980, 26, 13, 1839-1846. [all data]

Butts, 1972
Butts, W.C., Two-Column Gas Chromatography of Trimethylsilyl Derivatives of Biochemically Significant Compounds, Anal. Biochemistry, 1972, 46, 1, 187-199, https://doi.org/10.1016/0003-2697(72)90411-3 . [all data]

Tsai, Oliphant, et al., 1985
Tsai, M.Y.; Oliphant, C.; Josephson, M.W., Identification of Metabolites Diagnostic for Organic Acidurias by Simultaneous Dual-Column Capillary Gas Chromatography, J. Chromatogr., 1985, 341, 1-10, https://doi.org/10.1016/S0378-4347(00)84004-9 . [all data]

Tanaka and Hine, 1982
Tanaka, K.; Hine, D.G., Compilation of Gas Chromatographic Retention Indices of 163 Metabolically Important Organic Acids, and Their Use in Detection of Patients with Organic Acidurias, J. Chromatogr., 1982, 239, 301-322, https://doi.org/10.1016/S0021-9673(00)81990-1 . [all data]

Butts, 1970
Butts, W.C., Gas chromatographic separation of trimethylsilyl (TMS)-nucleosides: TMS-methoxime derivatives of cytidine and deoxycytidine, J. Chromatogr. Sci., 1970, 8, 8, 474-476, https://doi.org/10.1093/chromsci/8.8.474 . [all data]

Lee, Yanamandra, et al., 2002
Lee, B.Y.; Yanamandra, K.; Thurmon, T.F., Quantitative estimation of organic analytes with a capillary column, Am. Clin. Lab., 2002, May, 30-34. [all data]

Notes

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Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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