(cis)-1,3-Dibenzyldihydro-1H-furo(3,4-d)imidazole-2,4,6(3H)-trione 1,3-Dibenzyl-2-oxo-imidazolidine-cis-4,5-dicarboxylic anhydride 117933-30-9 1H-Furo(3,4-d)imidazole-2,4,6(3H)-trione, dihydro-1,3-bis(phenylmethyl)-, (3aR,6aS)-rel- 26339-42-4 89082-28-0 EINECS 247-618-9