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| Year of first report: | 1987 |
| Formula: | C29H48O7 |
| Molecular weight: | 508 |
| Occurence in plants: |
Rhaponticum carthamoides [Compositae] »  ![Wikipedia: <br />
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| Occurence in animals: |
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| CI-MS (NH3) m/z | | | EI-MS m/z (relative intensity %) | 490 (M - 18)+ (1), 475 (1), 472 (3), 457 (6), 454 (13), 443 (2), 439 (2), 436 (1), 363 (75), 345 (88), 327 (30), 300 (12), 250 (12), 171 (21), 127 (100), 109 (30), 84 (40). | | HR-MS | |
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| C5D5N | | 01 | | | 02 | | | 03 | | | 04 | | | 05 | | | 06 | | | 07 | | | 08 | | | 09 | | | 10 | | | 11 | | | 12 | | | 13 | | | 14 | | | 15 | | | 16 | | | 17 | | | 18 | | | 19 | | | 20 | | | 21 | | | 22 | | | 23 | | | 24 | | | 25 | | | 26 | | | 27 | | | 28 | | | 29 | |
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| C5D5N | | 01-Ha | | | 01-He | | | 02-Ha | 4.12 | | 03-He | 4.12 | | 04-Ha | | | 04-He | | | 05-H | 2.90 | | 07-H | 6.16 | | 09-Ha | 3.50 | | 11-Ha | | | 11-He | | | 12-Ha | | | 12-He | | | 15-Ha | | | 15-Hb | | | 16-Ha | | | 16-Hb | | | 17-H | | | 18-Me | 1.28 (s ) | | 19-Me | 0.98 (s ) | | 21-Me | 1.48 (s ) | | 22-H | 3.80 (d, 10) | | 23-H | 3.50 | | 24-Ha | | | 24-Hb | | | 25-H | | | 26-Me | 1.13 (d ) | | 27-Me | 1.13 (d ) | | 29-Me | 0.92 (d ) |
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| M.P. | 241-242 °C | | [α]D20 | + 30 ? 2 ° (c 0.1; MeOH) | | IR (KBr) ν max (cm-1) | 3300-3500 (OH), 1655 (cyclohexenone) | | UV (EtOH) λ max (log ε) | 244 (4.07) |
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Permanent link to this datasheet: RAPISTERONE
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