5',3'''-Dihydroxyrobustaflavone

5',3'''-Dihydroxyrobustaflavone

Common Name: 5',3'''-Dihydroxyrobustaflavone

Synonyms: 5',6"-Biluteolin

CAS Registry Number: 114865-40-6

InChI:

InChIKey:

Formula: C30H18O12

Molecular Weight: 570.46

Exact Mass: 570.0798

NMR Solvent: DMSO-d6

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

Calibration: not indicated

NMR references: Seeger, T., Zinsmeister, H., Geiger, H. (1990). The Biflavonoid Pattern of Rhytidiadelphus squarrosus (Hedw.) Warnst. Z. Naturforsch. 45c, 583-586.

Species: Rhytidiadelphus squarrosus

Notes: NMR data and species from Seeger et al. Other references containing NMR data: Geiger, H., Seeger, T., Hahn, H., Zinsmeister, D., Markham, K., Wong, H. (1993). 1H NMR Assignments in Biflavonoid Spectra by Proton-Detected C-H Correlation. Z. Naturforsch. 48c, 821-826.; Markham, K., Andersen, O., Viotto, E. (1988). Unique Biflavonoid Types from the Moss Dicranoloma robustum. Phytochemistry 27, 1745-1749.; Rampendahl, C., Seeger, T., Geiger, H., Zinsmeister, H. (1996). The Biflavonoids of Plagiomnium undulatum. Phytochemistry 41, 1621-1624.

Proton NMR Peaks

Position PPM Peak Type J (Hz)
3 6.65 s
6 6.2 d 2
8 6.45 d 2
2' 7.35 d 2
6' 7.4 d 2
3" 6.72 s
8" 6.59 s
2''' 7.45 d 2
5''' 6.92 d 8
6''' 7.46 dd 2, 8

Carbon NMR Peaks

Position PPM
2 164
3 102.8
4 181.6
5 162.3
6 98.7
7 163.6
8 93.4
9 157.2
10 103.6
1' 121.5
2' 121.9
3' 120.2
4' 148.6
5' 145.7
6' 111.7
2" 164
3" 102.7
4" 181.5
5" 161.4
6" 108.9
7" 162.3
8" 93.8
9" 156.2
10" 103.4
1''' 120.9
2''' 113.3
3''' 145.7
4''' 149.6
5''' 116
6''' 119