中文同義詞：(S)-Α-乙基-2-氧代-1-吡咯烷乙酰胺;左乙拉西坦溶液,100PPM;(S)-A-乙基-2-氧合-1-乙酰胺吡咯烷;(S)-ɑ-乙基-2-氧代-1-吡咯烷基乙酰胺;左乙拉西坦(標準品);2-(2,3-二氧代-1-吲哚啉)-N-(4-甲基苯基)乙酰胺;2-(2,3-二氧代-2,3-二氫-1H-吲哚-1-基)-N-(4-甲基苯基)乙酰胺;2-(2,3-二氧代吲哚-1-基)-N-(4-甲基苯基)乙酰胺

英文同義詞：(S)-2-(2-Oxo-1-pyrrolidinyl)butanamide;levetiracetamrawmateri;(2S)-2-(2-Oxopyrrolidin-1-yl)butanamide;(2S)-(2-Oxopyrrolidin-1-yl)butyramidChemicalbooke;1-Pyrrolidineacetamide,.alpha.-ethyl-2-oxo-,(.alpha.S)-;Levetiracetam(200mg);(2R)-2-(2-oxopyrrolidin-1-yl)butanaMide;(αS)-α-Ethyl-2-oxo-