Synonyms: (S)-5-(Hydroxymethyl)-2-pyrrolidinone Purity Limit: ≥ 98% CAS No.: 17342-08-4 Molecular Formula: C5H9NO2 Molecular Weight: 115.12 MDL No.: MFCD00077792 Appearance: White solid Optical Rotation: [a]D = +30.5 ± 2º (C=1 in EtOH) Storage Temperature: Store at 0-8°C