Spektraris NMR
Formoxanthone B
Common Name: Formoxanthone B
Synonyms:
CAS Registry Number:
InChI: InChI=1S/C28H30O5/c1-16(2)8-6-9-17(3)12-13-19-24(31)22-23(30)18-10-7-11-21(29)26(18)32-27(22)20-14-15-28(4,5)33-25(19)20/h7-8,10-12,14-15,29,31H,6,9,13H2,1-5H3/b17-12+
InChIKey: InChIKey=GNCKRVVIXVBNGH-SFQUDFHCSA-N
Formula: C28H30O5
Molecular Weight: 446.535852
Exact Mass: 446.209324
NMR Solvent: CDCl3
MHz:
Calibration:
NMR references: 13C - Boonsri, S., Karalai, C., Ponglimanont, C., Kanjana-opas, A., Chantrapromma, K. Phytochemistry (2006) 67, 723-7
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) | 158.7 |
| 2 (C) | 112.3 |
| 3 (C) | 160.6 |
| 4 (C) | 100.6 |
| 4a (C) | 149.2 |
| 5 (C) | 144.3 |
| 6 (CH) | 120.1 |
| 7 (CH) | 123.9 |
| 8 (CH) | 117.2 |
| 8a (C) | 121.2 |
| 9 (C) | 180.8 |
| 9a (C) | 103.2 |
| 10a (C) | 144.1 |
| 1' (CH2) | 21.1 |
| 2' (CH) | 121.7 |
| 3' (C) | 135.2 |
| 4' (CH2) | 39.8 |
| 5' (CH2) | 26.7 |
| 6' (CH) | 124.4 |
| 7' (C) | 131.3 |
| 8' (CH3) | 25.7 |
| 9' (CH3) | 16.3 |
| 10' (CH3) | 17.7 |
| 4'' (CH) | 115 |
| 5'' (CH) | 127.4 |
| 6'' (C) | 78.1 |
| 7'' (CH3) | 28.2 |
| 8'' (CH3) | 28.2 |
