- 热门化合物 :
- 物质11
- 2-丙炔-1-醇
- americium,trifluoride
- neptunium hexafluoride
- neptunium tetrachloride
大黄素 Emodin
概况
物化性质
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物理描述 Physical Description
Emodin appears as orange needles or powder. (NTP, 1992)
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颜色/状态 Color Form
Orange needles from alcohol or by sublimation at 12 mm
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气味 Odor
Orange crystals
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沸点 Boiling Point
Sublimes (NTP, 1992)
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熔点 Melting Point
257.0 °C
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溶解度 Solubility
Solubility @ 25 °C (g/100 ml of satd solution): ether 0.140; chloroform 0.071; carbon tetrachloride 0.010; carbon bisulfide 0.009; benzene 0.041
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稳定性/保质期 Stability Shelf Life
This chemcial may be sensitive to prolonged exposure to light. Solns of this chemical in water, DMSO, 95% ethanol or acetone should be stable for 24 hr under normal lab conditions (RAD).
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分解 Decomposition
When heated to decomp it emits acrid smoke and irritating fumes.
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其他实验性质 Other Experimental Properties
Brick red monoclinic needles; mp: 207 °C /3-Methyl ether/
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碰撞截面 Collision Cross Section
161.3 Ų [M+H]+ [CCS Type: DT, Method: stepped-field]
计算性质
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辛醇/水分配系数 LogP
2.7
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重原子数 Heavy atoms count
20
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可旋转键数 Rotatable bond count
0
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环数 Number of rings
3
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sp3杂化的碳原子比例 Carbon bond saturation (Fsp3)
0.07
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拓扑面积 Polar surface area (Å)
94.8
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氢给体数 Hydrogen bond donors count
3
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氢受体数 Hydrogen bond acceptors count
5
ADME
Absorption, excretion, tissue distribution and metabolism of the anthraquinone [14C]emodin was studied after a single oral administration (approx. 50 mg/kg) to rats. Urinary excretion amounted to 18(+/- 5)% dose in 24 hr and to 22(+/- 6)% in 72 hr. Metabolites found in pooled urine (0-72 hr) were mostly free anthraquinones (emodin and emodic acid, 16% dose); 3% was conjugated and 3% was non-extractable radioactivity. In 24 hr, 48 +/- 11% and in 120 hr, 68 +/- 8% dose was excreted in the faeces, mostly in the free anthraquinone form. In two cannulated rats biliary excretion reached a maximum at approx. 6 hr and amounted to 49% dose within 15 hr; 70% of biliary activity was in the form of conjugated emodin. The content of radioactivity in most organs decreased significantly between 3 and 5 days. In kidneys, however, the 14C activity was still equiv. to 4.33 ppm. emodin after five days. Mesenterium and fat tissue showed increasing 14C activity from 72 to 120 hr.
安全信息
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危险品标志
Xi
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WGK Germany
3
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危险品运输编号
NONH for all modes of transport
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海关编码
2932999099
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危险标志
GHS07
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RTECS号
CB7920600
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安全说明S37/39；S26；S36
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危险类别码R36/37/38
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危险性描述H315；H319；H335
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危险性防范说明P261；P305 + P351 + P338
热门化合物
