5-Hydroxy-7,4'-dimethoxyflavone-3a-2'''-hydroxy-4''',4''-dimethoxydihydrochalcone

5-Hydroxy-7,4'-dimethoxyflavone-3a-2'''-hydroxy-4''',4''-dimethoxydihydrochalcone

Common Name: 5-Hydroxy-7,4'-dimethoxyflavone-3a-2'''-hydroxy-4''',4''-dimethoxydihydrochalcone

Synonyms:

CAS Registry Number:

InChI:

InChIKey:

Formula: C34H30O9

Molecular Weight: 582.605

Exact Mass: 582.18899

NMR Solvent: CDCl3

MHz: 300 (1H), 75 (13C)

Calibration: not indicated

NMR references: de Oliveira, J., David, J., David, J. (2016). Biflavonoids from the bark roots of Poincianella pyramidalis (Fabaceae). Phytochemistry 16, 18-22.

Species: Poincianella pyramidalis - de Oliveira, J., David, J., David, J. (2016). Biflavonoids from the bark roots of Poincianella pyramidalis (Fabaceae). Phytochemistry 16, 18-22.

Notes:

Proton NMR Peaks

Position PPM Peak Type J (Hz)
6 6.36 d 1.8
8 6.31 d 1.8
2', 6' 7.26 d 9
3', 5' 6.93 d 9
OH 12.68 s
OCH3 3.76 s
OCH3 3.88 s
α 4.82 dd 6.3, 7.5
β 3.55 dd 6.3, 13.9
β 3.08 dd 7.5, 13.9
2" 7.13 d 8.7
3" 6.77 d 8.7
5" 6.77 d 8.7
6" 7.13 d 8.7
3''' 6.34 d 2.4
5''' 6.21 dd 2.4, 9
6''' 7.32 d 9
OH 12.23 s
OCH3 3.75 s
OCH3 3.82 s

Carbon NMR Peaks

Position PPM
2 164.1
3 120.2
4 181
5 161.4
6 98.2
7 165.2
8 92.1
9 165.4
10 104.9
1' 124.2
2', 6' 130.2
3', 5' 113.9
4' 162.1
OCH3 55.45
OCH3 55.7
α 46.7
β 35
β' 201.7
1" 131.7
2" 130.1
3" 113.7
4" 158.1
5" 113.7
6" 130.1
1''' 113
2''' 165.7
3''' 101
4''' 157.5
5''' 107
6''' 130.7
OCH3 55.2
OCH3 55.48