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L-Eflornithine monohydrochloride

目录号: PL08809 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。

CAS No. :69955-42-6

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中文名称	L-Eflornithine monohydrochloride
英文名称	L-Eflornithine monohydrochloride
英文别名	L-Ornithine, 2-(difluoromethyl)-, monohydrochloride;M3O9BB413G;Eflornithine hydrochloride, (S)-;FJPAMFNRCFEGSD-QYCVXMPOSA-N;alpha-difluoromethyl ornithine hydrochloride monohydrate;(+)-alpha-difluoromethylornithine monohydrochloride monohydrate;L-Eflornithine monohydrochloride
Cas No.	69955-42-6
分子式	C₆H₁₅ClF₂N₂O₃
分子量	236.64
包装储存	4°C, sealed storage, away from moistur In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
详情描述	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。

产品详情	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，K_D 为 1.3±0.3 μM，K_inact 为 0.15±0.03 min^-1。
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 K D of 1.3±0.3 μM, and a K inact of 0.15±0.03 min.
性状	Solid
IC50 & Target[1][2]	KD:1.3±0.3 μM (Ornithine decarboxylase, ODC)
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 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. T
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. has not independently confirmed the accuracy of these methods. They are for reference only.
运输条件	Room temperature in continental US; may vary elsewhere.
储存方式	4°C, sealed storage, away from moistur In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
参考文献	[1]. Qu N, et al. Inhibition of human ornithine decarboxylase activity by enantiomers of difluoromethylornithine. Biochem J. 2003 Oct 15;375(Pt 2):465-70. [2]. Jansson-L?fmark R, et al. Enantiospecific reassessment of the pharmacokinetics and pharmacodynamics of oral eflornithine against late-stage Trypanosoma brucei gambiense sleeping sickness. Antimicrob Agents Chemother. 2015 Feb;59(2):1299-307.

溶解度数据	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

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[1]. Qu N, et al. Inhibition of human ornithine decarboxylase activity by enantiomers of difluoromethylornithine. Biochem J. 2003 Oct 15;375(Pt 2):465-70.
[2]. Jansson-L?fmark R, et al. Enantiospecific reassessment of the pharmacokinetics and pharmacodynamics of oral eflornithine against late-stage Trypanosoma brucei gambiense sleeping sickness. Antimicrob Agents Chemother. 2015 Feb;59(2):1299-307.

1：一般建议：溶解度为Medlife测试数据，可能与文献描述存在差异。这是由于生产工艺和批次不同产生的正常现象。为了使其更好的溶解，请用37℃加热试管并在超声波水浴中震动片刻。不同批次产品溶解度各有差异，仅做参考，具体以实验方案为准。

2：储存条件：粉末-20°C一般情况可以保存3年，溶于溶剂-80°C一般情况可以保存1年。不同产品及不同批次产品可能存在差异，请细致阅读产品信息，并辅助参考相关文献描述。

L-Eflornithine monohydrochloride

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