... ,2,3-Benzotriazole 99.8%, --metal's slow corrosion water treatment chemical 2) low poison, LD50 for small mouse is 965mg/kg ... 1,2,3-BENZOTRIAZOLECAS NO.95-14-7Molecular weight:119 Chemical formulation:C6H5N3 Shape & properties:white needle-shape crystalloids, it can ... ,2,3-Benzotriazole 99.8%, --metal's slow corrosion water treatment chemical