103765-01-1

• 常用中文名：(R)-左乙拉西坦
• 常用英文名：Etiracetam
• CAS号：103765-01-1
• 分子式：C₈H₁₄N₂O₂
• 分子量：170.209
• 相关类别： 分析化学 标准品 药典标准品和杂志标准品
• 发布时间：2018-09-29 08:07:31
• 更新时间：2026-07-01 16:30:36

名称

• 中文名: (R)-2-(2-氧代吡咯烷-1-基)丁酰胺
• 英文名: (2R)-2-(2-oxopyrrolidin-1-yl)butanamide
• 中文别名: 左乙拉西坦 杂质 D ((R)-左乙拉西坦); (R)-乙拉西坦; 左乙拉西坦杂质; (R)-右乙拉西坦; (R)-2-(2-氧代吡咯烷-1-基)丁酰胺 (左乙拉西坦杂质); 左乙拉西坦相关杂质; 左乙拉西坦RC3; 左乙拉西坦杂质4(左乙拉西坦杂质D); LEVETIRACCETAM的R-异构体; 左乙拉西坦杂质D
• 英文别名: Levetiracetam R-Isomer / Levetiracetam Impurity-D; (R)-2-(2-Oxopyrrolidin-1-yl)butanamide (Levetiracetam Impurity); (2R)-2-(2-Oxo-1-pyrrolidinyl)butanimidic acid; Levetiracetam Impurity enantiomer; Levetiracetam Impurity D (R-enantiomer); Levetiracetam Impurity D; T5NVTJ AY2&VZ; (R)-2-(2-oxopyrrolidin-1- yl)butanamide; Levetiracetam impurities519; (R)-2-(2-oxopyrrolidin-1-yl)butanamide; Levetiracetam Impurity D ((R)-Levetiracetam); UNII:230447L0GL; Levetiracetam impurity 5/Levetiracetam Impurity D/(R)-Etiracetam/Levetiracetam R-Isomer/(R)-2-(2-oxopyrrolidin-1- yl)butanamide; C8H14N2O2; Levetiracetam Impurity 4; (αR)-α-Ethyl-2-oxo-1-pyrrolidineacetamide; 1-PYRROLIDINEACETAMIDE, A-ETHYL-2-OXO; R-(+)-ETIRACETAM; Levetiracetam Imputity D; Leviteracetam; Levetiracetam Impurity 4（Levetiracetam Impurity D）; Levetiracetam impurity D (Y0001257); 2-(2-oxopyrrolidin-1-yl)butanamide; levetiraccetam R-isomer; R-(+)-LevetiracetaM; LEVETIRACETAM IMP D; Levetiracetam-4; (2R)-2-(2-Oxopyrrolidin-1-yl)butanamide ((R)-Etiracetam); (±)-a-Ethyl-2-oxo-1-pyrrolidineacetamide; Levetiracetam Impurity D (Levetiracetam R-Isomer); (R)-alpha-Ethyl-2-oxo-1-pyrrolidineacetamide; 1-Pyrrolidineacetamide, α-ethyl-2-oxo-, (αR); 1-Pyrrolidineacetamide, alpha-ethyl-2-oxo-, (R); (R)-2-(2-OXO-PYRROLIDIN-1-YL)-BUTYRAMIDE; 2-(2-Oxo-1-pyrrolidinyl)butanamide; α-Ethyl-2-oxo-1-pyrrolidineacetamide; Torleva; UCB-L 060; 乙拉西坦; 2-(2-Oxopyrrolidin-1-yl)butyramide; ucb L060; (±)-α-Ethyl-2-oxo-1-pyrrolidineacetamide; (2R)-2-(2-Oxo-1-pyrrolidinyl)butanamide; LEVITIRACETAM

物化性质

• 密度: 1.2±0.1 g/cm3
• 沸点: 395.9±25.0 °C at 760 mmHg
• 分子式: C₈H₁₄N₂O₂
• 分子量: 170.209
• 闪点: 193.2±23.2 °C
• 精确质量: 170.105530
• PSA: 64.39000
• LogP: -0.67
• 蒸汽压: 0.0±0.9 mmHg at 25°C
• 折射率: 1.519