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L-Eflornithine monohydrochloride (Synonyms: L-DFMO monohydrochloride; ; L-RMI71782 monohydrochloride; L-α-difluoromethylornithine monohydrochloride) 纯度: ≥98.0%
L-Eflornithine monohydrochloride (L-DFMO monohydrochloride) 是 Eflornithine 的对映异构体。L-Eflornithine 是一种不可逆的鸟氨酸脱羧酶 (ornithine decarboxylase, ODC) 抑制剂,KD 为 1.3±0.3 μM,Kinact 为 0.15±0.03 min-1。
L-Eflornithine monohydrochloride Chemical Structure
CAS No. : 69955-42-6
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10 mM * 1 mL in DMSO | ¥1710 | In-stock | |
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生物活性 |
L-Eflornithine monohydrochloride (L-DFMO monohydrochloride) is an enantiomer of Eflornithine. L-Eflornithine is an irreversible ornithine decarboxylase (ODC) inhibitor with a KD of 1.3±0.3 µM, and a Kinact of 0.15±0.03 min-1[1]. |
IC50 & Target |
KD:1.3±0.3 µM (Ornithine decarboxylase, ODC)[1] |
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体外研究 (In Vitro) |
Eflornithine (D/L-DFMO) is an inhibitor of ODC, the first enzyme in eukaryotic polyamine biosynthesis. Both enantiomers of Eflornithine (DFMO) irreversibly inactivate ODC. Both Eflornithine enantiomers (L-Eflornithine and D-Eflornithine) suppress ODC activity in a time- and concentration-dependent manner. The inhibitor dissociation constant (KD) values for the formation of enzyme-inhibitor complexes are 28.3±3.4, 1.3±0.3 and 2.2±0.4 µM respectively for D-Eflornithine, L-Eflornithine and Eflornithine. The inhibitor inactivation constants (Kinact) for the irreversible step were 0.25±0.03, 0.15±0.03 and 0.15±0.03 min-1 respectively for D-Eflornithine, L-Eflornithine and Eflornithine. Treatment of human colon tumour-derived HCT116 cells with either L-Eflornithine or D- Eflornithine decreases the cellular polyamine contents in a concentration-dependent manner[1]. The enantiomers display different potencies in vitro, with the L-enantiomer having up to a 20-fold higher affinity for the target enzyme ornithine decarboxylase[2]. 上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only. |
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体内研究 (In Vivo) |
The more potent L-Eflornithine is present at much lower concentrations in both plasma and cerebrospinal fluid (CSF) than those of the D-Eflornithine. The plasma concentrations of L-Eflornithine are on average 52% of the D-enantiomer concentrations. The typical oral clearances of L-Eflornithine and D-eflornithine are 17.4 and 8.23 liters/h, respectively[2]. 上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only. |
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分子量 |
218.63 |
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Formula |
C6H13ClF2N2O2 |
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CAS 号 |
69955-42-6 |
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中文名称 |
L-依氟鸟氨酸盐酸盐 |
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运输条件 |
Room temperature in continental US; may vary elsewhere. |
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储存方式 |
4°C, sealed storage, away from moisture *In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture) |
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溶解性数据 |
In Vitro:
DMSO : 200 mg/mL (914.79 mM; Need ultrasonic) H2O : 50 mg/mL (228.70 mM; Need ultrasonic) 配制储备液
*
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。 In Vivo:
请根据您的实验动物和给药方式选择适当的溶解方案。以下溶解方案都请先按照 In Vitro 方式配制澄清的储备液,再依次添加助溶剂: ——为保证实验结果的可靠性,澄清的储备液可以根据储存条件,适当保存;体内实验的工作液,建议您现用现配,当天使用; 以下溶剂前显示的百
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参考文献 |
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