... 1) 1,2,3-Benzotriazole 99.8%, --metal's slow corrosion water treatment chemical 2) low poison, LD50 for small mouse is 965mg/kg 1,2,3 ... water stabilizer,the additive for high molecular materials'(polyester and polyesteramide)capacity of ultraviolet resistance and ... stabilizer,the additive for high molecular materials'(polyester and polyesteramide)capacity 1,2,3-Benzotriazole 99.8%, --metal's slow ...