The molecule is a dihydroxy-1,3,5-triazine that is 1,3,5-triazine-2,4-diol substituted by a chloro group at position 6. It is a chloro-1,3,5-triazine and a dihydroxy-1,3,5-triazine.
6-chloro-1H-1,3,5-triazine-2,4-dione