1-(2,6-Xylyl)-2-methyl-2-thiopseudourea hydroiodide 2-Methyl-2-thio-3-(2,6-xylyl)pseudourea hydriodide 27806-86-6 NSC 137922 Pseudourea, 2-methyl-2-thio-1-(2,6-xylyl)-, monohydriodide Pseudourea, 2-methyl-2-thio-3-(2,6-xylyl)-, hydriodide