Esculin hydrate |
Cas 号: | 【531-75-9】 | M D L: | --MFCD00149492 |
分子式: | C15H16O9·xH2O | 分子量: | 340.28 |
别 名: | 七叶灵倍半水合物,七叶苷,6-(beta-D-吡喃葡糖氧基)-7-羟基-2H-1-苯并呋喃-2-酮 6,7-Dihydroxycoumarin 6-glucoside hydrate 6-(beta-D-Glucopyranosyloxy)-7-hydroxy-2H-1-benzopyran-2-one 7-Hydroxycoumarin-6-yl beta-D-Glucopyranoside Esculin Sesquihydrate |
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性 状: | 熔点:203-205℃ [α]20D : -79 ° (C=2.4, 50% Dioxane) |
质量标准: | 外观Appearance 白色至类白色粉末 红外光谱鉴别Infrared spectrometry 和对照匹配 纯度Purity ≥99.0% (HPLC) 纯度Purity 98.5 - 101.5 % (中和滴定) 比旋光度Specific rotation [a]20/D -77.0°~ -81.0°(C=2.4, 50% Dioxane) 水分Water ≤10.5 % (Karl Fischer) UV/Vis absorbance 13.0 - 13.5 (EmM, 335-336 nm in EtOH, anhydrous basis) |
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