Spektraris NMR
2,3-Dihydroixocarpalactone B
Common Name: 2,3-Dihydroixocarpalactone B
Synonyms:
CAS Registry Number:
InChI: InChI=1S/C28H40O8/c1-12-13(2)28(36-22(12)31)23(32)26(5,33)21-17(34-28)11-16-14-10-20-27(35-20)19(30)7-6-18(29)25(27,4)15(14)8-9-24(16,21)3/h12-17,19-21,23,30,32-33H,6-11H2,1-5H3/t12-,13-,14-,15+,16+,17?,19+,20-,21+,23+,24+,25+,26-,27-,28?/m1/s1
InChIKey: InChIKey=LXDDGNRTELHLEX-BUQCOUIRSA-N
Formula: C28H40O8
Molecular Weight: 504.613475
Exact Mass: 504.272318
NMR Solvent: CDCl3
MHz:
Calibration:
NMR references: 13C - Gu, J.Q., Li, W., Kang, Y.H., Su, B.N., Fong, H.H., van Breemen, R.B., Pezzuto, J.M., Kinghorn, A.D. Chem Pharm Bull (2003) 51, 530-9
Species:
Notes: Family : Steroids, Type : Spirostanes, Group : Withanolides; 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) | 212 |
| 2 (CH2) | 31.6 |
| 3 (CH2) | 26.1 |
| 4 (CH) | 72.8 |
| 5 (C) | 66.8 |
| 6 (CH) | 58.4 |
| 7 (CH2) | 31.3 |
| 8 (CH) | 28.8 |
| 9 (CH) | 43.3 |
| 10 (C) | 50.6 |
| 11 (CH2) | 20.8 |
| 12 (CH2) | 39.3 |
| 13 (C) | 42.9 |
| 14 (CH) | 54.5 |
| 15 (CH2) | 33.6 |
| 16 (CH) | 75.1 |
| 17 (CH) | 62.4 |
| 18 (CH3) | 14.8 |
| 19 (CH3) | 15.2 |
| 20 (C) | 74.8 |
| 21 (CH3) | 26.9 |
| 22 (CH) | 71.8 |
| 23 (C) | 107.7 |
| 24 (CH) | 49.3 |
| 25 (CH) | 42.4 |
| 26 (C) | 177.8 |
| 27 (CH3) | 13.9 |
| 28 (CH3) | 12.1 |
