5-Hydroxy-7-methoxyflavone(4'-O-8")4''',5",7"-trihydroxyflavone

5-Hydroxy-7-methoxyflavone(4'-O-8")4''',5",7"-trihydroxyflavone

Common Name: 5-Hydroxy-7-methoxyflavone(4'-O-8")4''',5",7"-trihydroxyflavone

Synonyms: 7-O-methyllanaraflavone

CAS Registry Number: 487004-69-3

InChI:

InChIKey:

Formula: C31H20O10

Molecular Weight: 552.491

Exact Mass: 552.1057

NMR Solvent: CD3SOCD3

MHz: 400 (1H), 100 (13C)

Calibration: TMS

NMR references: Velandia, J., de Carvalho, M., Braz-Filho, R., Werle, A. (2002). Biflavonoids and a Glucopyranoside Derivative from Ouratea semiserrata. Phytochem. Anal. 13, 283-292.

Species: Ouratea semiserrata - Velandia, J., de Carvalho, M., Braz-Filho, R., Werle, A. (2002). Biflavonoids and a Glucopyranoside Derivative from Ouratea semiserrata. Phytochem. Anal. 13, 283-292.

Notes:

Proton NMR Peaks

Position PPM Peak Type J (Hz)
3 6.83 s
6 6.35 brs
8 6.73 brs
2', 6' 8.03 brs
3', 5' 7.16 brs
3" 6.76 s
6" 6.41 s
2''', 6''' 7.47 d 8.4
3''', 5''' 6.75 d 8.4
7-OCH3 3.83 s
5-OH 12.82 s
5"-OH 12.7 s

Carbon NMR Peaks

Position PPM
2 163.5
3 104.36
4 182.15
5 161.57
6 98.25
7 165.42
7-OCH3 56.23
8 92.92
9 157.87
10 104.17
1' 124.61
2', 6' 128.79
3', 5' 115.73
4' 161.16
2" 163.5
3" 103.06
4" 181.83
5" 157.45
6" 99.44
7" 156.95
8" 121.36
9" 149.11
10" 103.06
1''' 120.94
2''', 6''' 128.22
3''', 5''' 116.07
4''' 161.38