1774-97-6 4H-1,3,2-Benzodioxaphosphorin, 2-(dimethylamino)-, 2-oxide 4H-1,3,2-Benzodioxaphosphorin-2-amine, N,N-dimethyl-, 2-oxide BRN 1913156 N,N-Dimethylphosphoramidic acid cyclic methylene-o-phenylene ester Phosphoramidic acid, N,N-dimethyl-, cyclic methylene-o-phenylene ester