| Sterol |
| LIPID_ID | ST0333 |
| CHEM_NA | 2,16,20,25-TETRAHYDROXY-9-METHYL-19-NORLA |
| NOSTA-1,5-DIENE-3,11,22-TRIONE/23,24-DIHYDRO |
| CUCURBITACIN L. |
| COMMON_NA | CUCURBITACIN L |
| MOL_FORMULA | C20H44O7 |
| MOL_WT | 396 |
| MELT_PT | ABOUT 140ﾟC(721),122-127ﾟC(714) |
| BOIL_PT |
| OPT_ROT | [α]/D=-49ﾟ(C=1.0 in CHLOROFORM)(721) |
| [α]28/D=-41ﾟ(C,1.3% in ETHANOL)(714) |
| [α]22/D=-42±2ﾟ(C=1.0 in ETHANOL)(419) |
| REFRA_IND |
| DENSITY |
| SOLUBILITY |
| UV_SPEC | λmax,270mμ(ε=8,050 in ETHANOL),313 |
| mμ(ε=5,850 in 0.1NKOH in |
| 50%ETHANOL)(721);λmax,mμ(Ε1%/1cm)270(164),3 |
| 14(119)(714);λmax(logε)=270mμ(3.75)in |
| IR_SPEC | νmax : 1695, 1661cm-1(721);(CHCl3):3605, 3450, |
| 2972, 1688, 1660cm-1(419) |
| NMR_SPEC |
| MS_SPEC |
| NOTE_SPEC |
| SOURCE | 植物｡ |
| ・Citrullus ecirrhosus Sond.(Colocynthis ecirrhosus |
| Chakrav.), Cucurbitaceae の根｡ (721) |
| BIOL_ACTIV | ・苦味成分｡ (714) |
| NOTE | 分子量 396.213, 23,24-DIHYDROCUCURBITACIN I |
| と同一｡ (721) |
| 1998年7月17日 | 52 / 486 ページ |