00486naa a2200157 a 450000100080000000500110000800800410001910000180006024501280007826000090020665000150021570000150023070000190024570000210026477300430028519968762014-10-08       1990    bl uuuu     u00u1 u    #d1 aCOOPER, M. S.  aOxidation reactions using urea hydrogen peroxideba safe alternative to anhydrous hydrogen peroxide.h[electronic resource]  c1990  aOxidação1 aHEANEY, H.1 aNEWBOLD, A. J.1 aSANDERSON, W. R.  tSynlettgn. 9, p. 533-535, Sept. 1990.