4',5,6,7,8-Pentamethoxyflavone
- Formula: C20H20O7
- Molecular weight: 372.3686
- IUPAC Standard InChI: InChI=1S/C20H20O7/c1-22-12-8-6-11(7-9-12)14-10-13(21)15-16(23-2)18(24-3)20(26-5)19(25-4)17(15)27-14/h6-10H,1-5H3
- IUPAC Standard InChIKey: ULSUXBXHSYSGDT-UHFFFAOYSA-N
- CAS Registry Number: 481-53-8
- 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: 4H-1-Benzopyran-4-one, 5,6,7,8-tetramethoxy-2-(4-methoxyphenyl)-; Flavone, 4',5,6,7,8-pentamethoxy-; Pentamethoxyflavone; Ponkanetin; Tangeretin; Tangeritin; 4H-1-Benzopyran-4-one, 5,6,7,8-tetramethoxy-2-(p-methoxyphenyl)-; Flavone, 5,6,7,8,4'-pentamethoxy; 5,6,7,8-tetramethoxy-2-(4-methoxyphenyl)-4-benzopyrone
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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
Kovats' RI, non-polar column, isothermal
| Column type | Active phase | Temperature (C) | I | Reference | Comment |
|---|---|---|---|---|---|
| Capillary | DB-1 | 310. | 3162.9 | Stremple, 1998 | 30. m/0.25 mm/0.25 μm |
Van Den Dool and Kratz RI, non-polar column, custom temperature program
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | HP-5MS | 3184. | 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 | DB-5 | 3198. | Feger, Brandauer, et al., 2006 | 15. m/0.25 mm/0.5 μm, He, 50. C @ 1. min, 10. K/min, 320. C @ 5. min |
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.
Stremple, 1998
Stremple, P.,
GC/MS analysis of polymethoxyflavones in citrus oils,
J. Hi. Res. Chromatogr., 1998, 21, 11, 587-591, https://doi.org/10.1002/(SICI)1521-4168(19981101)21:11<587::AID-JHRC587>3.0.CO;2-P
. [all data]
Andriamaharavo, 2014
Andriamaharavo, N.R.,
Retention Data. NIST Mass Spectrometry Data Center., NIST Mass Spectrometry Data Center, 2014. [all data]
Feger, Brandauer, et al., 2006
Feger, W.; Brandauer, H.; Gabris, P.; Ziegler, H.,
Nonvolatiles of Commercial Lime and Grapefruit Oils Separated by High-Speed Countercurrent Chromatography,
J. Agric. Food Chem., 2006, 54, 6, 2242-2252, https://doi.org/10.1021/jf052267t
. [all data]
Notes
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- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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