Levetiracetam-d6是Levetiracetam的氘代衍生物,是一种含有6个氘原子的稳定同位素标记化合物。
Cas No.:1133229-30-7
Sample solution is provided at 25 µL, 10mM.
Levetiracetam-d6 is a deuterated derivative of Levetiracetam, a stable isotope-labeled compound containing six deuterium atoms. Levetiracetam is an antiepileptic drug that inhibits epileptic seizures by binding to synaptic vesicle protein 2A (SV2A) and modulating neurotransmitter release[1,2]. Levetiracetam-d6 is commonly used as an internal standard in LC-MS/MS for the quantitative analysis of Levetiracetam concentrations in biological samples (e.g., plasma, urine) and for pharmacokinetic studies[3,4,5].
Reference:
[1] LYSONG-WILLIAMSON K A. Levetiracetam: a review of its use in epilepsy[J]. Drugs, 2011, 71(4): 489-514.
[2] ABOU-KHALIL B. Levetiracetam in the treatment of epilepsy[J]. Neuropsychiatric Disease and Treatment, 2008, 4(3): 507-523.
[3] NIKOLAOU P, PAPOUTSIS I, DONA A, et al. Development and validation of a GC/MS method for the simultaneous determination of levetiracetam and lamotrigine in whole blood[J]. Journal of Pharmaceutical and Biomedical Analysis, 2015, 102: 25-32.
[4] BOUDRIau S, HANZEL C, MASSICOTTE J, et al. Randomized comparative bioavailability of a novel three-dimensional printed fast-melt formulation of levetiracetam following the administration of a single 1000-mg dose to healthy human volunteers under fasting and fed conditions[J]. Drugs in R&D, 2016, 16(2): 229-238.
[5] SIME F B, ROBERTS J A, JEFFREE R L, et al. Population pharmacokinetics of levetiracetam in patients with traumatic brain injury and subarachnoid hemorrhage exhibiting augmented renal clearance[J]. Clinical Pharmacokinetics, 2021, 60(5): 655-664.
Levetiracetam-d6是Levetiracetam的氘代衍生物,是一种含有6个氘原子的稳定同位素标记化合物。Levetiracetam是一种抗癫痫药物,可通过与突触囊泡蛋白2A(SV2A)结合调节神经递质的释放,从而抑制癫痫的发作[1,2]。Levetiracetam-d6通常在LC-MS/MS中作为内标物,用于生物样本(如血浆、尿液)中Levetiracetam药物浓度的定量分析和药代动力学研究[3,4,5]。
使用Levetiracetam-d6作为内标定量生物样本中的Levetiracetam浓度[1]:
(1)将Levetiracetam-d6储备液用甲醇稀释,配制成浓度为20μg/mL的内标工作溶液。
(2)向所有样本(包括校准品、质控品、待测样品)中加入20μL的Levetiracetam-d6工作溶液(内标最终浓度为2μg/mL),涡旋混合15s。
(3)将含内标的样本pH值调整到6.0后通过C18固相萃取柱进行净化与洗脱。
(4)洗脱液干燥后,加入30μL乙腈和30μL MTBSTFA(含1%TBDMSCI)在70℃下加热20min进行衍生。
(5)在选择离子扫描(SIM)模式下,监测Levetiracetam-d6衍生物(Levetiracetam-d6-BD)的特征碎片离子,定性离子为m/z 132、115和233。
Reference:
[1] NIKOLAOU P, PAPOUTSIS I, DONA A, et al. Development and validation of a GC/MS method for the simultaneous determination of levetiracetam and lamotrigine in whole blood[J]. Journal of Pharmaceutical and Biomedical Analysis, 2015, 102: 25-32.
| Cas No. | 1133229-30-7 | SDF | |
| 别名 | 左乙拉西坦杂质-d6,UCB L059-d6 | ||
| Canonical SMILES | NC([C@H](CC)N1C(C([2H])([2H])C([2H])([2H])C1([2H])[2H])=O)=O | ||
| 分子式 | C8H8D6N2O2 | 分子量 | 176.2 |
| 溶解度 | Acetone: slightly soluble, sonicated,Chloroform: slightly soluble | 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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| Shipping Condition | 评估样品解决方案:配备蓝冰进行发货。所有其他可用尺寸:配备RT,或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 5.6754 mL | 28.3768 mL | 56.7537 mL |
| 5 mM | 1.1351 mL | 5.6754 mL | 11.3507 mL |
| 10 mM | 567.5 μL | 2.8377 mL | 5.6754 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 | |||
| 第二步:请输入动物体内配方组成(配方适用于不溶于水的药物;不同批次药物配方比例不同,请联系GLPBIO为您提供正确的澄清溶液配方) | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
计算结果:
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,
体内配方配制方法:取 μL DMSO母液,加入 μL PEG300,混匀澄清后加入μL Tween 80,混匀澄清后加入 μL saline,混匀澄清。
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。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
Quality Control & SDS
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- Purity: >99.50% Appearance: A solid
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