7,4'-dihydroxy-flavanone-3,8-5",6",4"-trihydroxy-flavone

7,4'-dihydroxy-flavanone-3,8-5",6",4"-trihydroxy-flavone

Common Name: 7,4'-dihydroxy-flavanone-3,8-5",6",4"-trihydroxy-flavone

Synonyms:

CAS Registry Number:

InChI:

InChIKey:

Formula: C30H20O9

Molecular Weight: 524.48

Exact Mass: 524.1107

NMR Solvent: CD3OD

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)
2 5.86 d 10.5
3 5.53 d 10.5
5 7.58 d 9
6 6.36 dd 2.3, 9
8 6.39 d 2.3
2', 6' 7.29 d 8.5
3', 5' 6.85 d 8.5
6" 6.29 s
2''' 7.13 d 8.8
3''' 6.54 d 8.8
5''' 6.54 d 8.8
6''' 7.13 d 8.8

Carbon NMR Peaks

Position PPM
2 91.6
3 53.9
4 201.4
5 132.6
6 108.9
7 166.6
8 102.5
9 166.5
10 112.6
1' 129.1
2', 6' 127.1
3', 5' 115.2
4' 157.9
2" 164
3" 102.9
4" 182.1
5" 162.8
6" 93.4
7" 166.1
8" 104
9" 151.7
10" 103.8
1''' 120.9
2''' 127.3
3''' 115.2
4''' 160.7
5''' 115.2
6''' 127.3