title: [Isoelectric focusing of an alkylating 3H-cyclophosphamide derivative from human bladder urine].
abstract: 1) A stable polar 3H-cyclophosphamide metabolite capable of alkylating 4-(p-nitrobenzyl) pyridine and relatively high concentrated in human bladder urine was isolated. The compound has the pI value 9.06. It is a phosphoramide mustard conjugate. 2) Determination of the isoelectric point was accomplished by means of a new thin-layer isoelectric focusing technique applicable for characterizing loaded parts of low molecular weight substance mixtures.
mesh_terms: D003520:Cyclophosphamide / Q000652:urine*; D004591:Electrophoresis, Polyacrylamide Gel; D006801:Humans; D007525:Isoelectric Focusing; D007526:Isoelectric Point
chemical_list: D003520:Cyclophosphamide
vernacular_title: Untersuchungen über einen alkylierenden 3H-Cyclophosphamidabkömmling des menschlichen Blasenurins unter Anwendung der isoelektrischen Fokussierung