3,3",5,5",7,7",4',4'''-Octahydroxy[2',2''']biflavone

3,3",5,5",7,7",4',4'''-Octahydroxy[2',2''']biflavone

Common Name: 3,3",5,5",7,7",4',4'''-Octahydroxy[2',2''']biflavone

Synonyms: 4H-​1-​Benzopyran-​4-​one, 2,​2'-​(5,​5'-​dihydroxy[1,​1'-​biphenyl]​-​2,​2'-​diyl)​bis[3,​5,​7-​trihydroxy- (9CI)

CAS Registry Number: 787634-53-1

InChI:

InChIKey:

Formula: C30H18O12

Molecular Weight: 570.46

Exact Mass: 570.0798

NMR Solvent: DMSO-d6

MHz: 300.0

Calibration: not indicated

NMR references: Parveen, M., Ilyas, M., Mushfiq, M., Busudan, O., Muhaisen, H. (2004). A new Biflavonoid from Leaves of Garcinia Nervosa. Nat. Prod. Res. 18, 269-275.

Species: Garcinia nervosa - Parveen, M., Ilyas, M., Mushfiq, M., Busudan, O., Muhaisen, H. (2004). A new Biflavonoid from Leaves of Garcinia Nervosa. Nat. Prod. Res. 18, 269-275.

Notes: Structure shown in the paper is incorrect according to the paper 1H NMR data. Parveen et al. only report 1H NMR data for this compound.

Proton NMR Peaks

Position PPM Peak Type J (Hz)
6, 6" 6.2 s
8, 8" 6.23 s
3', 5', 3''', 5''' 7.13 dd 8, 2
3', 5', 3''', 5''' 7.22 dd 8, 2
6', 6''' 7.36 d 8
5-OH, 5"-OH 12.9 s
7-OH, 7"-OH 10.4 s
4'-OH, 4'''-OH 9.33 s
3-OH, 3"-OH 9.31 not indicated