Spektraris NMR
Hyperxanthone B
Common Name: Hyperxanthone B
Synonyms:
CAS Registry Number:
InChI: InChI=1S/C18H16O8/c1-18(2,24)17-15(23)13-12-10(5-8(21)16(13)26-17)25-9-4-6(19)3-7(20)11(9)14(12)22/h3-5,15,17,19-21,23-24H,1-2H3
InChIKey: InChIKey=QJHHEMWYGFIDMW-UHFFFAOYSA-N
Formula: C18H16O8
Molecular Weight: 360.315538
Exact Mass: 360.084517
NMR Solvent: CD3COCD3
MHz:
Calibration:
NMR references: 13C - Tanaka, N., Takaishi, Y., Shikishima, Y., Nakanishi, Y., Bastow, K., Lee, K.H., Honda, G., Ito, M., Takeda, Y., Kodzhimatov, O.K., Ashurmetov, O. J Nat Prod (2004) 67, 1870-5
Species:
Notes: Family : Aromatics, Type : Xanthones; 13 C Spectrum from Naproc 13: José Luis López-Pérez, Roberto Therón, Esther del Olmo, David Díaz: NAPROC-13: a database for the dereplication of natural product mixtures in bioassay-guided protocols. Bioinformatics 23(23):3256-3257 (2007)
Carbon NMR Peaks
| Position | PPM |
|---|---|
| 1 (C) | 163.9 |
| 2 (CH) | 98.5 |
| 3 (C) | 165.6 |
| 4 (CH) | 94.1 |
| 4a (C) | 158.4 |
| 5 (CH) | 104.3 |
| 6 (C) | 149.9 |
| 7 (C) | 146.3 |
| 8 (C) | 127.9 |
| 8a (C) | 110.6 |
| 9 (C) | 181.1 |
| 9a (C) | 103.2 |
| 10a (C) | 153.6 |
| 1' (CH) | 73.9 |
| 2' (CH) | 97.1 |
| 3' (C) | 70.7 |
| 4' (CH3) | 25.6 |
| 5' (CH3) | 25 |
