4-morpholin-2-ylbenzene-1,2-diol 4-(2-morpholinyl)benzene-1,2-diol 4-morpholin-2-ylpyrocatechol 54826-84-5 1,2-Benzenediol, 4-(2-morpholinyl)- 2-(3,4-Dioxyphenyl)tetrahydro-1,4-oxazin [German] 4-(2-Morpholinyl)pyrocatechol BRN 0170116 Pyrocatechol, 4-(2-morpholinyl)-