Spektraris NMR
4-Hydroxy-6-(3-methyl-2-butenyl-)-7,8-dimethoxy-5H-furo[3,2-b]xanthene-5-one
![4-Hydroxy-6-(3-methyl-2-butenyl-)-7,8-dimethoxy-5H-furo[3,2-b]xanthene-5-one](/nmr/static/nmr/svg/8469.svg)
Common Name: 4-Hydroxy-6-(3-methyl-2-butenyl-)-7,8-dimethoxy-5H-furo[3,2-b]xanthene-5-one
Synonyms: 4-Hydroxy-6-(3-methyl-2-butenyl-)-7,8-dimethoxy-5H-furo[3,2-b]xanthene-5-one
CAS Registry Number:
InChI: InChI=1S/C22H20O6/c1-11(2)5-6-13-18-15(10-17(25-3)22(13)26-4)28-16-9-14-12(7-8-27-14)20(23)19(16)21(18)24/h5,7-10,23H,6H2,1-4H3
InChIKey: InChIKey=RJQGTNXLUPWEKK-UHFFFAOYSA-N
Formula: C22H20O6
Molecular Weight: 380.391434
Exact Mass: 380.125988
NMR Solvent: CDCl3
MHz:
Calibration:
NMR references: 13C - Johns, S.R., Lamberton, J.A., Morton, T.C., Suares, H., Willing, R.I. Aust J Chem (1983) 36, 2537-47
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) | 156.9 |
| 2 (C) | 112.1 |
| 3 (C) | 159.3 |
| 4 (CH) | 89.6 |
| 4a (C) | 156 |
| 5 (CH) | 98.4 |
| 6 (C) | 158.6 |
| 7 (C) | 144.1 |
| 8 (C) | 137.5 |
| 8a (C) | 111.4 |
| 9 (C) | 183.8 |
| 9a (C) | 104.7 |
| 10a (C) | 153.4 |
| 1' (CH2) | 26.3 |
| 2' (CH) | 123.1 |
| 3' (C) | 132.1 |
| 4' (CH3) | 25.9 |
| 5' (CH3) | 18.2 |
| 2a (CH) | 104.5 |
| 2b (CH) | 144.1 |
| 6a (CH3) | 56.1 |
| 7a (CH3) | 61 |
