Spektraris NMR
5,7-Dihydroxy-2',3',4',5'-tetramethoxyflavone
Common Name: 5,7-Dihydroxy-2',3',4',5'-tetramethoxyflavone
Synonyms: 5,7-Dihydroxy-2',3',4',5'-tetramethoxyflavone
CAS Registry Number:
InChI: InChI=1S/C19H18O8/c1-23-15-7-10(17(24-2)19(26-4)18(15)25-3)13-8-12(22)16-11(21)5-9(20)6-14(16)27-13/h5-8,20-21H,1-4H3
InChIKey: InChIKey=ZYVBPTWKKGRSOZ-UHFFFAOYSA-N
Formula: C19H18O8
Molecular Weight: 374.342155
Exact Mass: 374.100168
NMR Solvent: C5D5N
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) | 162.7 |
| 3 (CH) | 110.6 |
| 4 (C) | 183.3 |
| 5 (C) | 163.7 |
| 6 (CH) | 100.6 |
| 7 (C) | 166.7 |
| 8 (CH) | 95.5 |
| 9 (C) | 159.3 |
| 10 (C) | 105.6 |
| 1' (C) | 121 |
| 2' (C) | 147.9 |
| 3' (C) | 147.1 |
| 4' (C) | 148.6 |
| 5' (C) | 150.7 |
| 6' (CH) | 107.9 |
| 2'a (CH3) | 61.6 |
| 3'a (CH3) | 61.9 |
| 4'a (CH3) | 61.8 |
| 5'a (CH3) | 56.9 |
