| Sterol |
| LIPID_ID | ST0322 |
| CHEM_NA | 25-(ACETYLOXY)-2,16,20-TRIHYDROXY-9-(HYDRO |
| XYMETHYL)-19-NORLANOSTA-5,23-DIENE-3,11,22 |
| -TRIONE |
| COMMON_NA | CUCURBITACIN A |
| MOL_FORMULA | C32H46O9 |
| MOL_WT | 574 |
| MELT_PT | 207-208ﾟC(ETHYL ACETATE)(710) |
| BOIL_PT |
| OPT_ROT | [α]27/D=+97.3ﾟ(C=1.04 in ETHANOL)(710) |
| REFRA_IND |
| DENSITY |
| SOLUBILITY |
| UV_SPEC | UVmax(ETHANOL):229, |
| 290nm(logε=4.03,logε=2.26), |
| INFLEXION:330-350nm (logε=1.81-1.64)(710) |
| IR_SPEC | 遊離水酸基を持つ｡(νmax 3448cm-1)(711), |
| 5.85μ(ISOLATED KETO GROUP,CARBONYL OF THE |
| ACETYL GROUP),5.92μ,6.14μ(CARBONYL AND |
| DOUBLE BOND OF αβ-UNSATURATED KETO |
| GROUP)(710) |
| NMR_SPEC |
| MS_SPEC |
| NOTE_SPEC | M(X-RAY METHOD),587±16(711) |
| SOURCE | 植物｡ Cucurbitaceae の実。CUCUMIS |
| MYRIOCARPUS, C.LEPTODERMIS。(710) |
| BIOL_ACTIV | CUCURBITACEAE の苦味成分。 MINIMUM LETHAL |
| DOSE(M.L.D)0.7mg/kg ウサギ(i.v.)｡(710) |
| NOTE | 分子量 574.434, 中性, アセチル基を1つ含む。(710) |
| 1998年7月17日 | 454 / 486 ページ |