2,2,2-trichloro-1,3-dimethyl-1,3-diaza-2$l^{5}-phosphacyclobutan-4-one;3576-20-3;NSC203250;1,3,2-Diazaphosphetidin-4-one, 2,2,2-trichloro-2,2-dihydro-1,3-dimethyl-;1,3,2-Diazaphosphetidin-4-one,2,2,2-trichloro-2,2-dihydro-1,3-dimethyl-
2,2,2-trichloro-1,3-dimethyl-1,3-diaza-2$l^{5}-phosphacyclobutan-4-one