While washing my bathroom sink, I read that the main ingredient of the cleaner I used was none other than "sodium dichloro-s-triazinetrione dihydrate" Is the structure of this compound simply: -1,3,5 triazinetrione with two hydrogens replaced with chlorine, and the third hydrogen replaced with sodium?? Drawing the structure, I notice no "R/S" stereochemistry. But the name of the substance has a lowercase "s" in it! What does this mean? What is the structure of this excellent cleaning agent??