Major metabolite of Chlorpheniramine.Atmosphere:Inert gasMelting Point:103-107°CSolubility:DMSO, MethanolMethod for Determining Identity: Proton NMR (DMSO-d6) and MSTLC Conditions: SiO2; Dichloromethane : Methanol : Ammonium Hydroxide (8 : 2 : 0.15). Visualized with UV and Ninhydrin (single spot; Rf=0.45).Storage and Stability:Store at -20°C under inert atmosphere. Caution: Hygroscopic. For maximum recovery of product, centrifuge the original vial prior to removing the cap.