4'-O-methyl-robustaflavone

4'-O-methyl-robustaflavone

Common Name: 4'-O-methyl-robustaflavone

Synonyms: Robustaflavone 4'-methyl ether

CAS Registry Number: 275365-36-1

InChI:

InChIKey:

Formula: C31H20O10

Molecular Weight: 552.491

Exact Mass: 552.1056

NMR Solvent: DMSO-d6

MHz: 400.0

Calibration: TMS

NMR references: Zhang, Y., Shi, S., Wang, Y., Huang, K. (2011). Target-guided isolation and purification of antioxidants from Selaginella sinensis by offline coupling of DPPH-HPLC and HSCCC experiments. J. Chromatogr. B 879, 191-196.

Lin, L., Kuo, Y., Chou, C. (2000). Cytotoxic Biflavonoids from Selaginella delicatula. J. Nat. Prod. 63, 627-630.

Species: Selaginella sinensis - Zhang, Y., Shi, S., Wang, Y., Huang, K. (2011). Target-guided isolation and purification of antioxidants from Selaginella sinensis by offline coupling of DPPH-HPLC and HSCCC experiments. J. Chromatogr. B 879, 191-196.

Notes:

Proton NMR Peaks

Position PPM Peak Type J (Hz)
3 6.89 s
6 6.2 d 2
8 6.51 d 2
2' 7.84 d 2
5' 7.25 d 8.5
6' 7.92 dd 8.5, 2
3" 6.84 s
8" 6.65 s
2''' 7.97 d 8.5
3''' 6.95 d 8.5
5''' 6.95 d 8.5
6''' 7.97 d 8.5
OCH3 3.81 s

Carbon NMR Peaks

Position PPM
2 163.3
3 103.4
4 181.6
5 161.3
6 98.8
7 164.1
8 94
9 157.3
10 103.5
1' 122.3
2' 130.2
3' 121.1
4' 160.6
5' 111.6
6' 127.8
2" 163.6
3" 102.8
4" 181.9
5" 158.8
6" 108.5
7" 161.8
8" 93.4
9" 156.3
10" 103.7
1''' 122.5
2''', 6''' 128.4
3''', 5''' 115.9
4''' 161.1
OCH3 55.7