1,3,4-Thiadiazol-2(3H)-one, 5-methoxy-3-((methylthio)methyl)- 19691-52-2 2-Methoxy-4-((methylthio)methyl)-delta2-1,3,4-thiadiazolin-5-one delta2-1,3,4-Thiadiazolin-5-one, 2-methoxy-4-((methylthio)methyl)-