Spektraris NMR
(2,3-trans-3,4-trans)-3,4-Dimethoxy-(2'',3'':7,8)-furano-flavan)
Common Name: (2,3-trans-3,4-trans)-3,4-Dimethoxy-(2'',3'':7,8)-furano-flavan)
Synonyms:
CAS Registry Number:
InChI: InChI=1S/C19H18O4/c1-20-18-14-8-9-15-13(10-11-22-15)17(14)23-16(19(18)21-2)12-6-4-3-5-7-12/h3-11,16,18-19H,1-2H3/t16-,18-,19-/m1/s1
InChIKey: InChIKey=LLNYPTNRKTUNSC-BHIYHBOVSA-N
Formula: C19H18O4
Molecular Weight: 310.344535
Exact Mass: 310.120509
NMR Solvent: CDCl3
MHz:
Calibration:
NMR references: 13C - Magalhaes, A.F., Tozzi, A.M., Magalhaes, E.G., Nogueira, M.A., Queiroz, S.C. Phytochemistry (2000) 55, 787-92
Species:
Notes: Family : Flavonoids, Type : Flavonoids, Group : Flavans; 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 |
|---|---|
| 2 (CH) | 80.5 |
| 3 (CH) | 81.96 |
| 4 (CH) | 79.86 |
| 5 (CH) | 105.15 |
| 6 (CH) | 124.19 |
| 7 (C) | 156.04 |
| 8 (C) | 116.7 |
| 9 (C) | 147.9 |
| 10 (C) | 115.36 |
| 1' (C) | 138.13 |
| 2' (CH) | 127.19 |
| 3' (CH) | 128.36 |
| 4' (CH) | 128.44 |
| 5' (CH) | 128.36 |
| 6' (CH) | 127.19 |
| 2'' (CH) | 144 |
| 3'' (CH) | 104.09 |
| 3a (CH3) | 57.79 |
| 4a (CH3) | 59.53 |
