Seneciphyllinine
(Synonyms: 菊三七碱乙) 目录号 : GC37626Seneciphyllinine 是一种从 Gynura japonica 根中分离出的吡咯里西啶生物碱。吡咯里西啶生物碱是高度肝毒性的天然化学物质,对人类产生不可逆的慢性和急性肝毒性作用。
Cas No.:90341-45-0
Sample solution is provided at 25 µL, 10mM.
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Seneciphyllinine, a pyrrolizidine alkaloid, is isolated from the roots of Gynura japonica. Pyrrolizidine alkaloids are highly hepatotoxic natural chemicals that produce irreversible chronic and acute hepatotoxic effects on human beings[1].
[1]. Fang L, et al. Mass-spectrometry-directed analysis and purification of pyrrolizidine alkaloid cis/trans isomers in Gynura japonica. J Sep Sci. 2014 Aug;37(15):2032-8.
Cas No. | 90341-45-0 | SDF | |
别名 | 菊三七碱乙 | ||
Canonical SMILES | O=C(O[C@]1([H])CCN2[C@]1([H])C(COC([C@](C)(OC(C)=O)C(C/3)=C)=O)=CC2)C3=C/C | ||
分子式 | C20H25NO6 | 分子量 | 375.42 |
溶解度 | Soluble in DMSO | 储存条件 | Store at -20°C |
General tips | 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液;一旦配成溶液,请分装保存,避免反复冻融造成的产品失效。 储备液的保存方式和期限:-80°C 储存时,请在 6 个月内使用,-20°C 储存时,请在 1 个月内使用。 为了提高溶解度,请将管子加热至37℃,然后在超声波浴中震荡一段时间。 |
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1 mg | 5 mg | 10 mg | |
1 mM | 2.6637 mL | 13.3184 mL | 26.6368 mL |
5 mM | 0.5327 mL | 2.6637 mL | 5.3274 mL |
10 mM | 0.2664 mL | 1.3318 mL | 2.6637 mL |
第一步:请输入基本实验信息(考虑到实验过程中的损耗,建议多配一只动物的药量) | ||||||||||
给药剂量 | mg/kg | 动物平均体重 | g | 每只动物给药体积 | ul | 动物数量 | 只 | |||
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% DMSO % % Tween 80 % saline | ||||||||||
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工作液浓度: mg/ml;
DMSO母液配制方法: mg 药物溶于 μL DMSO溶液(母液浓度 mg/mL,
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1. 首先保证母液是澄清的;
2.
一定要按照顺序依次将溶剂加入,进行下一步操作之前必须保证上一步操作得到的是澄清的溶液,可采用涡旋、超声或水浴加热等物理方法助溶。
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Mass-spectrometry-directed analysis and purification of pyrrolizidine alkaloid cis/trans isomers in Gynura japonica
J Sep Sci 2014 Aug;37(15):2032-8.PMID:24840731DOI:10.1002/jssc.201400314.
Pyrrolizidine alkaloids are highly hepatotoxic natural chemicals that produce irreversible chronic and acute hepatotoxic effects on human beings. Purification of large amounts of pyrrolizidine alkaloids is necessary for toxicity studies. In this study, an efficient method for targeted analysis and purification of pyrrolizidine alkaloid cis/trans isomers from herbal materials was developed for the first time. Targeted analysis of the hepatotoxic pyrrolizidine alkaloids was performed by liquid chromatography with tandem mass spectrometry (precursor ion scan and daughter ion scan), and the purification of pyrrolizidine alkaloids was achieved with a mass-directed auto purification system. The extraction and preparative liquid chromatography conditions were optimized. The developed method was applied to analysis of Gynura japonica (Thunb.) Juel., a herbal medicine traditionally used for detumescence and relieving pain but is potentially hepatotoxic as it contains pyrrolizidine alkaloids. Twelve pyrrolizidine alkaloids (six cis/trans isomer pairs) were identified with reference compounds or characterized by liquid chromatography with tandem mass spectrometry, and five individual pyrrolizidine alkaloids, including (E)-seneciphylline, seneciphylline, integerrimine, senecionine, and Seneciphyllinine, were prepared from G. japonica roots with high efficiency. The results of this work provide a new technique for the preparation of large amounts of pyrrolizidine alkaloid reference substances, which will also benefit toxicological studies of pyrrolizidine alkaloids and treatments for pyrrolizidine alkaloid-induced toxicity.
Simultaneous characterization of pyrrolizidine alkaloids and N-oxides in Gynura segetum by liquid chromatography/ion trap mass spectrometry
Rapid Commun Mass Spectrom 2009 Jan;23(2):291-302.PMID:19072862DOI:10.1002/rcm.3862.
Gynura segetum (Lour.) Merr. (Jusanqi) is a traditional herbal product used for hemostasis and detumescence in Chinese folk medicine. However, its hepatic toxicity should not be ignored. In this study, pyrrolizidine alkaloids (PAs) and their corresponding N-oxides (PANOs) were extracted from the whole plant of G. segetum and analyzed by high-performance liquid chromatography coupled to ion trap mass spectrometry (ITMS). Identification of eluted peaks as PANOs was indicated by virtue of their MS and MS(n) analysis, in addition to the [M+H](+) adduct ion, characteristically showed a significant (usually 100% abundance) dimer adduct [2M+H](+) that is not observed in the MS of the parent PAs. A total of 20 compounds were identified or tentatively characterized based on their mass spectra and possible biosynthetic pathways, of which three PAs and one PANO, namely seneciphylline, senecionine, seneciphylline and Seneciphyllinine N-oxide, were unequivocally characterized, while other PAs and PANOs were tentatively assigned. Sixteen constituents were reported for the first time from G. segetum and tetrahydrosenecionine has not been previously reported as a natural product. Our results are the first comprehensive analysis of PAs and PANOs in G. segetum constituents and will be helpful for the quality control of the herb of G. segetum and its related preparations.
[Studies on the alkaloids of Gynura segetum (Lour.) Merr]
Yao Xue Xue Bao 1990;25(3):191-7.PMID:2239333doi
Six alkaloids were isolated from Gynura segetum (Lour.) Merr. Four of them were identified. Alkaloids I and II were identified as known senecionine and seneciphylline, respectively. Alkaloids III and IV were found to be new compounds named Seneciphyllinine and (E)-seneciphylline respectively. Their structures were confirmed on the basis of spectral data (UV, IR, MS, 1HNMR, 13CNMR, C-H COSY).