... .5% min. Odorless,white crystalline powder,granular or tablet Cyanuric Acid 2,4,6-Trihydroxy-1,3,5-Triazine98.5% min.Odorless ... ,white crystalline powder,granular or tablet.Cyanuric Acid(CYA) Chemical Name:2,4,6-Trihydroxy-1,3,5-TriazineSynonym: Isocyanuric ... places, no contacting with alkaline, reductive or oxidative matter. Cyanuric Acid(CYA) 2,4,6-Trihydroxy-1,3,5-Triazine