Spektraris NMR
Cowaxanthone B
Common Name: Cowaxanthone B
Synonyms:
CAS Registry Number:
InChI: InChI=1S/C25H28O6/c1-13(2)7-9-15-17(26)11-18-22(23(15)27)24(28)21-16(10-8-14(3)4)25(30-6)20(29-5)12-19(21)31-18/h7-8,11-12,26-27H,9-10H2,1-6H3
InChIKey: InChIKey=BLZDSTHKFQEOIU-UHFFFAOYSA-N
Formula: C25H28O6
Molecular Weight: 424.487168
Exact Mass: 424.188589
NMR Solvent: CDCl3
MHz:
Calibration:
NMR references: 13C - Panthong, K., Pongcharoen, W., Phongpaichit, S., Taylor, W.C. Phytochemistry (2006) 67, 999-1004
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) | 160.63 |
| 2 (C) | 108.45 |
| 3 (C) | 161.57 |
| 4 (CH) | 93.16 |
| 4a (C) | 155.04 |
| 5 (CH) | 98.31 |
| 6 (C) | 158.14 |
| 7 (C) | 144.2 |
| 8 (C) | 137.29 |
| 8a (C) | 111.89 |
| 9 (C) | 182.1 |
| 9a (C) | 103.75 |
| 10a (C) | 155.46 |
| 1' (CH2) | 26.18 |
| 2' (CH) | 123.16 |
| 3' (C) | 131.89 |
| 4' (CH3) | 25.87 |
| 5' (CH3) | 18.15 |
| 2a (CH2) | 21.46 |
| 2b (CH) | 121.48 |
| 2c (C) | 135.78 |
| 2d (CH3) | 17.94 |
| 2e (CH3) | 25.92 |
| 6a (CH3) | 56.04 |
| 7a (CH3) | 60.96 |
