Spektraris NMR
Ridiculuflavone C
Common Name: Ridiculuflavone C
Synonyms: 4''',5'',7,7''-tetrahydroxy-3''',4',5-trimethoxy-3,6''-biflavone
CAS Registry Number: 329201-15-2
InChI:
InChIKey:
Formula: C33H24O11
Molecular Weight: 596.54
Exact Mass: 596.1319
NMR Solvent: DMSO-d6-CDCl3 (1:1)
MHz: 200, (1H), 50 (13C)
Calibration: not indicated
NMR references: Carneiro, F., Boralle, N., Silva, D., Lopes, L. (2000). Bi- and tetraflavonoids from Aristolochia ridicula. Phytochemistry 55, 823-832.
Species: Aristolochia ridicula - Carneiro, F., Boralle, N., Silva, D., Lopes, L. (2000). Bi- and tetraflavonoids from Aristolochia ridicula. Phytochemistry 55, 823-832.
Notes:
Proton NMR Peaks
| Position | PPM | Peak Type | J (Hz) |
|---|---|---|---|
| 6 | 6.27 | d | 1.5 |
| 8 | 6.4 | d | 1.5 |
| 2' | 7.41 | d | 7.9 |
| 3' | 6.68 | d | 7.9 |
| 5' | 6.68 | d | 7.9 |
| 6' | 7.41 | d | 7.9 |
| 3" | 6.42 | s | |
| 8" | 6.42 | s | |
| 2''' | 7.24 | d | 2.1 |
| 5''' | 6.88 | d | 8.6 |
| 6''' | 7.3 | dd | 8.6, 2.1 |
| OCH3-3''' | 3.85 | s | |
| OCH3-4' | 3.75 | s | |
| OCH3-5 | 3.65 | s | |
| OH-5" | 12.9 | s |
Carbon NMR Peaks
| Position | PPM |
|---|---|
| 2 | 160.8 |
| 3 | 113.5 |
| 4 | 174.5 |
| 5 | 160.7 |
| 6 | 95.1 |
| 7 | 162.3 |
| 8 | 96.7 |
| 9 | 162.7 |
| 10 | 106.7 |
| 1' | 125.4 |
| 2' | 129.5 |
| 3' | 113.9 |
| 4' | 160.3 |
| 5' | 113.9 |
| 6' | 129.5 |
| 2" | 163.4 |
| 3" | 103.6 |
| 4" | 182 |
| 5" | 159.6 |
| 6" | 106.2 |
| 7" (interchangeable with 9") | 163.9 |
| 8" | 93.8 |
| 9" (interchangeable with 7") | 156.8 |
| 10" | 103.5 |
| 1''' | 120.7 |
| 2''' | 110.3 |
| 3''' | 148.3 |
| 4''' | 151 |
| 5''' | 116.1 |
| 6''' | 121.8 |
| OCH3-3''' | 56.2 |
| OCH3-4' | 56.1 |
| OCH3-5 | 55.5 |
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The Spektraris NMR database is developed and hosted by the Lange laboratory at WSU. CAS Registry Number is a Registered Trademark of the American Chemical Society.