Spektraris NMR
5-hydroxy-7-methoxy-2-(2,3,4,5-tetramethoxyphenyl)chromen-4-one
Common Name: 5-hydroxy-7-methoxy-2-(2,3,4,5-tetramethoxyphenyl)chromen-4-one
Synonyms: 5-hydroxy-7-methoxy-2-(2,3,4,5-tetramethoxyphenyl)chromen-4-one
CAS Registry Number:
InChI: InChI=1S/C20H20O8/c1-23-10-6-12(21)17-13(22)9-14(28-15(17)7-10)11-8-16(24-2)19(26-4)20(27-5)18(11)25-3/h6-9,21H,1-5H3
InChIKey: InChIKey=UQKOTVMFJYMJEP-UHFFFAOYSA-N
Formula: C20H20O8
Molecular Weight: 388.368772
Exact Mass: 388.115818
NMR Solvent: CDCl3
MHz:
Calibration:
NMR references: 13C - Juma, B.F., Yenese, A., Midiwo, J.O., Waterman, P.G. Phytochemistry (2001) 57, 571-4
Species:
Notes: Family : Flavonoids, Type : Flavonoids, Group : Flavones; 13 C Spectrum from Naproc 13: José Luis López-Pérez, Roberto Therón, Esther del Olmo, David Díaz: NAPROC-13: a database for the dereplication of natural product mixtures in bioassay-guided protocols. Bioinformatics 23(23):3256-3257 (2007)
Carbon NMR Peaks
| Position | PPM |
|---|---|
| 2 (C) | 161.9 |
| 3 (CH) | 110.3 |
| 4 (C) | 182.9 |
| 5 (C) | 162.5 |
| 6 (CH) | 98.1 |
| 7 (C) | 165.7 |
| 8 (CH) | 92.2 |
| 9 (C) | 158.1 |
| 10 (C) | 105.8 |
| 1' (C) | 120 |
| 2' (C) | 147.9 |
| 3' (C) | 146.8 |
| 4' (C) | 147.6 |
| 5' (C) | 149.7 |
| 6' (CH) | 106.5 |
| 7a (CH3) | 56 |
| 2'a (CH3) | 61.6 |
| 3'a (CH3) | 61.6 |
| 4'a (CH3) | 61.5 |
| 5'a (CH3) | 56.7 |
