5',5'-Bisdihydroquercetin

5',5'-Bisdihydroquercetin

Common Name: 5',5'-Bisdihydroquercetin

Synonyms: 4H-1-Benzopyran-4-one, 2,2'-(5,5',6,6'-tetrahydroxy[1,1'-biphenyl]-3,3'-diyl)bis[2,3-dihydro-3,5,7-trihydroxy-, [2R-[2α(2R*,3R*),3β]]-

CAS Registry Number: 142846-76-2

InChI:

InChIKey:

Formula: C30H22O14

Molecular Weight: 606.49

Exact Mass: 606.10096

NMR Solvent: methanol-d4

MHz: 400.0

Calibration: not indicated

NMR references: Foo, L., Helm, R., Karchessy, J. (1992). [5',5']-Bisdihydroquercetin: A B-Ring Linked Biflavonoid from Pseudotsuga Menziesii. Phytochemistry 31, 1444-1445.

Species: Pseudotsuga Menziesii - Foo, L., Helm, R., Karchessy, J. (1992). [5',5']-Bisdihydroquercetin: A B-Ring Linked Biflavonoid from Pseudotsuga Menziesii. Phytochemistry 31, 1444-1445.

Notes:

Proton NMR Peaks

Position PPM Peak Type J (Hz)
2 4.97 d 11.6
3 4.56 d 11.6
6 (may be interchanged with 8) 5.89 s
8 (may be interchanged with 6) 5.88 s
2' (may be interchanged with 6') 7 br s
6' (may be interchanged with 2') 7.05 br s

Carbon NMR Peaks

Position PPM
2 84.6
3 73.5
4 198
10 101.7
5 165
6 97.4
7 168.4
8 96.4
9 165
1' 130.1
2' 114.9
3' 146.9
4' 143.9
5' 127.2
6' 123