(3-(4-(Dimethylamino)phenyl)-4,5-dihydro-5-isoxazolyl)phosphonic acid monohydrobromide 125674-86-4 3-(4-Dimethylaminophenyl)-2-isoxazolin-5-ylphosphonic acid hydrobromide Phosphonic acid, (3-(4-(dimethylamino)phenyl)-4,5-dihydro-5-isoxazolyl)-, monohydrobromide