Spektraris NMR
7-Hydroxy-5,6,8,3¥,4¥-pentamethoxyflavone
Common Name: 7-Hydroxy-5,6,8,3¥,4¥-pentamethoxyflavone
Synonyms:
CAS Registry Number:
InChI: InChI=1S/C20H20O8/c1-23-12-7-6-10(8-14(12)24-2)13-9-11(21)15-17(25-3)19(26-4)16(22)20(27-5)18(15)28-13/h6-9,22H,1-5H3
InChIKey: InChIKey=XGOWVPRWNRKCSL-UHFFFAOYSA-N
Formula: C20H20O8
Molecular Weight: 388.368772
Exact Mass: 388.115818
NMR Solvent: CDCl3
MHz:
Calibration:
NMR references: 13C - Sugiyama, S., Umehara, K., Kuroyanagi, M., Ueno, A., Taki, T. Chem Pharm Bull (1993) 41, 714-9
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) | 161.4 |
| 3 (CH) | 106.7 |
| 4 (C) | 177.3 |
| 5 (C) | 145.1 |
| 6 (C) | 140.1 |
| 7 (C) | 140.3 |
| 8 (C) | 138.1 |
| 9 (C) | 145.6 |
| 10 (C) | 114.2 |
| 1' (C) | 124.2 |
| 2' (CH) | 108.7 |
| 3' (C) | 149.4 |
| 4' (C) | 152 |
| 5' (CH) | 111.3 |
| 6' (CH) | 119.7 |
| 5a (CH3) | 62.8 |
| 6a (CH3) | 61.5 |
| 8a (CH3) | 62.1 |
| 3'a (CH3) | 56.5 |
| 4'a (CH3) | 56 |
