PD 312236 is a pyranoside lactose conjugate degradation product of pregabalin, a GABA analogue used as an anticonvulsant.Synonym:1-Deoxy-4-O-beta-D-galactopyranosyl-1-[(4S)-4-(2-methylpropyl)-2-oxo-1-pyrrolidinyl]-beta-D-fructose, Pyranose/Furanose MixtureMolecular Formula:C₂₀H₃₅NO₁₁Molecular Weight:465.49Appearance:White solidPurity:≥90%Melting Point: >99°C (dec.)Solubility:Methanol (Slightly), Water (Slightly)Method for Determining Identity: Proton NMR (D2O) and MSTLC Conditions: C18; Acetonitrile : Water (8 : 2). Visualized with KMnO4 (single spot; Rf =0.70)Storage and Stability:Store at -20°C. For maximum recovery of product, centrifuge the original vial prior to removing the cap.