Synonyms: D-Hyp-OH(2R,4S)-4-Hydroxypyrrolidine-2-carboxylic acid Purity Limit: ≥ 99% (HPLC) CAS No.: 3398-22-9 Molecular Formula: C5H9NO3 Molecular Weight: 131.1 MDL No.: MFCD00065608 Appearance: White to pale pink solid Optical Rotation: [a]D22 = +76 ± 2º (C=1 in H2O) …